All 1,367 dinosaurs, A to Z

Every dinosaur in the Dino Archive, in alphabetical order, with the period it lived in, its diet, where its fossils were found and a short description. Tap a name to open its full page, with photos, size, a fossil map and more. Looking for the ones found here? See Dinosaurs of India.

A

• Aardonyx Jurassic · Herbivore · South AfricaA transitional plant-eater caught between walking on two legs and four.
• Abdarainurus Cretaceous · Herbivore · MongoliaAbdarainurus is a long-necked plant-eating sauropod known from fossils found in Mongolia. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Abditosaurus Cretaceous · Herbivore · Spain (Europe)The largest titanosaur known from the late Cretaceous islands of Europe.
• Abelisaurus Cretaceous · Carnivore · Argentina (South America)The namesake of the abelisaurs, a group of short-faced southern predators.
• Abrictosaurus Jurassic · Herbivore · Lesotho (Africa)A small, early fanged plant-eater, a relative of Heterodontosaurus.
• Abrosaurus Jurassic · Herbivore · China (Asia)A sauropod with a boxy, well-windowed skull from Sichuan, China.
• Abydosaurus Cretaceous · Herbivore · USA (Utah)A brachiosaur known from rare, beautifully complete skulls.
• Acantholipan Cretaceous · Herbivore · Mexico (North America)The oldest known armored nodosaur from Mexico.
• Achelousaurus Cretaceous · Herbivore · The United StatesAchelousaurus is a horned, frilled plant-eater known from fossils found in the United States. It is classified within Ceratopsia · Ceratopsidae. Its full size, appearance and biology are not yet widely documented.
• Acheroraptor Cretaceous · Carnivore · USA (Montana)A raptor from the very end of the dinosaur age, a cousin of Velociraptor.
• Achillesaurus Cretaceous · Carnivore · Argentina (South America)A small alvarezsaur named for a distinctive ankle feature.
• Achillobator Cretaceous · Carnivore · Mongolia (Asia)A large, powerfully-built raptor, one of the biggest dromaeosaurs from Asia.
• Acristavus Cretaceous · Herbivore · USA (Montana)A flat-headed duck-bill near the ancestry of the crested kinds.
• Acrocanthosaurus Cretaceous · Carnivore · USA (North America)A huge predator with tall spines forming a ridge along its back.
• Acrotholus Cretaceous · Herbivore · Canada (Alberta)The oldest well-known bonehead dinosaur, with a thick, solid skull dome.
• Actiosaurus Triassic · Herbivore · FranceActiosaurus is a long-necked plant-eating sauropod known from fossils found in France. It is classified within Sauropodomorpha · Anchisauridae. Its full size, appearance and biology are not yet widely documented.
• Adamantisaurus Cretaceous · Herbivore · Brazil (South America)A titanosaur from the Adamantina rocks of southern Brazil.
• Adasaurus Cretaceous · Carnivore · Mongolia (Asia)A raptor with an unusually small sickle claw on each foot.
• Adelolophus Cretaceous · Herbivore · USA (Utah)An early crested duck-bill from southern Utah.
• Adeopapposaurus Jurassic · Herbivore · Argentina (South America)An early plant-eater that may have had a horny beak on its snout.
• Adratiklit Jurassic · Herbivore · Morocco (Africa)The oldest known stegosaur, from the Middle Jurassic of North Africa.
• Adynomosaurus Cretaceous · Herbivore · SpainAdynomosaurus is a duck-billed plant-eating dinosaur known from fossils found in Spain. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Aegyptosaurus Cretaceous · Herbivore · Egypt (Africa)A titanosaur that lived alongside Spinosaurus in ancient North Africa.
• Aeolosaurus Cretaceous · Herbivore · Argentina (South America)A titanosaur with an unusually flexible, downward-curving tail.
• Aepyornithomimus Cretaceous · Omnivore · Mongolia (Asia)An ostrich-dinosaur that lived in a harsh sandy desert.
• Aerosteon Cretaceous · Carnivore · Argentina (South America)A large predator whose hollow, air-filled bones hint at a bird-like breathing system.
• Afromimus Cretaceous · Carnivore · NigerAfromimus is a predatory theropod dinosaur known from fossils found in Niger. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Afrovenator Jurassic · Carnivore · Niger (Africa)A sleek African predator known from a beautifully complete skeleton.
• Agilisaurus Jurassic · Herbivore · China (Asia)A small, fast, two-legged plant-eater from Jurassic China.
• Agnosphitys Triassic · Herbivore · The United KingdomAgnosphitys is a long-necked plant-eating sauropod known from fossils found in the United Kingdom. It is classified within Sauropodomorpha · Guaibasauridae. Its full size, appearance and biology are not yet widely documented.
• Agujaceratops Cretaceous · Herbivore · The United StatesAgujaceratops is a horned, frilled plant-eater known from fossils found in the United States. It is classified within Ceratopsia · Ceratopsidae. Its full size, appearance and biology are not yet widely documented.
• Agustinia Cretaceous · Herbivore · ArgentinaAgustinia is a long-necked plant-eating sauropod known from fossils found in Argentina. It is classified within Sauropoda · Rebbachisauridae. Its full size, appearance and biology are not yet widely documented.
• Ahshislepelta Cretaceous · Herbivore · USA (New Mexico)A club-tailed armored dinosaur from New Mexico.
• Ahshislesaurus Cretaceous · Herbivore · The United StatesAhshislesaurus is a duck-billed plant-eating dinosaur known from fossils found in the United States. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Ahvaytum Triassic · Herbivore · The United StatesAhvaytum is a long-necked plant-eating sauropod known from fossils found in the United States. It is classified within Sauropodomorpha · basal. Its full size, appearance and biology are not yet widely documented.
• Ajancingenia Cretaceous · Omnivore · Mongolia (Asia)A small beaked oviraptorid once known by the name Ingenia.
• Ajkaceratops Cretaceous · Herbivore · Hungary (Europe)A rare European horned dinosaur, a surprise find in Hungary.
• Ajnabia Cretaceous · Herbivore · MoroccoAjnabia is a duck-billed plant-eating dinosaur known from fossils found in Morocco. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Akainacephalus Cretaceous · Herbivore · USA (Utah)A club-tailed armored dinosaur covered in cone-like spikes.
• Alamosaurus Cretaceous · Herbivore · USA (North America)A giant titanosaur and the last great sauropod of North America.
• Alaskacephale Cretaceous · Herbivore · USA (Alaska)A dome-headed dinosaur that lived in the cool polar north of Alaska.
• Albalophosaurus Cretaceous · Herbivore · Japan (Asia)A small Japanese plant-eater with a mix of primitive and advanced features.
• Albertaceratops Cretaceous · Herbivore · Canada (Alberta)A horned dinosaur with long brow horns but only a low nose bump.
• Albertadromeus Cretaceous · Herbivore · The United StatesAlbertadromeus is a dinosaur known from fossils found in the United States. It is classified within Ornithopoda · Thescelosauridae. Its full size, appearance and biology are not yet widely documented.
• Albertavenator Cretaceous · Carnivore · Canada (Alberta)A small, brainy troodontid first mistaken for its relative Troodon.
• Albertonykus Cretaceous · Carnivore · Canada (Alberta)A tiny insect-eating dinosaur, one of the smallest known from Canada.
• Albertosaurus Cretaceous · Carnivore · Canada (North America)A smaller, faster cousin of T. rex and a top predator of its time.
• Albinykus Cretaceous · Carnivore · Mongolia (Asia)One of the smallest known dinosaurs, a tiny insect-eater the size of a chicken.
• Alcovasaurus Jurassic · Herbivore · USA (Wyoming)A plated, spike-tailed dinosaur from the Morrison rocks of Wyoming.
• Alectrosaurus Cretaceous · Carnivore · Mongolia (Asia)A slender, mid-sized tyrannosaur from the Gobi Desert.
• Aletopelta Cretaceous · Herbivore · USA (California)An armored dinosaur whose body drifted out to sea after it died.
• Alioramus Cretaceous · Carnivore · Mongolia (Asia)A slender, long-snouted tyrannosaur with a row of small bumpy horns on its snout.
• Allosaurus Jurassic · Carnivore · North America & PortugalThe apex predator of the Late Jurassic, with strong clawed arms and a powerful jaw that it may have used like a hatchet to slash at large prey.
• Almas Cretaceous · Carnivore · Mongolia (Asia)A small, brainy troodontid from the Gobi Desert.
• Alnashetri Cretaceous · Carnivore · ArgentinaAlnashetri is a predatory theropod dinosaur known from fossils found in Argentina. It is classified within Theropoda · Alvarezsauridae. Its full size, appearance and biology are not yet widely documented.
• Alpkarakush Jurassic · Carnivore · KyrgyzstanAlpkarakush is a predatory theropod dinosaur known from fossils found in Kyrgyzstan. It is classified within Theropoda · Metriacanthosauridae. Its full size, appearance and biology are not yet widely documented.
• Altirhinus Cretaceous · Herbivore · Mongolia (Asia)An Iguanodon relative with a tall, arched, bony nose.
• Alvarezsaurus Cretaceous · Carnivore · Argentina (South America)A small, slender, fast dinosaur and the namesake of its whole family.
• Alwalkeria Triassic · Omnivore · IndiaAlwalkeria is a dinosaur known from fossils found in India. It is classified within Saurischia · basal. Its full size, appearance and biology are not yet widely documented.
• Alxasaurus Cretaceous · Herbivore · China (Asia)An early therizinosaur, helping show how these strange plant-eaters evolved.
• Amanasaurus Triassic · Omnivore · BrazilAmanasaurus is a early dinosaur relative known from fossils found in Brazil. It is classified within Dinosauriformes · Silesauridae. Its full size, appearance and biology are not yet widely documented.
• Amanzia Jurassic · Herbivore · SwitzerlandAmanzia is a long-necked plant-eating sauropod known from fossils found in Switzerland. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Amargasaurus Cretaceous · Herbivore · Argentina (South America)A small sauropod with two rows of tall spines running down its neck and back.
• Amargatitanis Cretaceous · Herbivore · Argentina (South America)A medium sauropod, a relative of the spiny-necked Amargasaurus.
• Amazonsaurus Cretaceous · Herbivore · Brazil (South America)A comb-toothed sauropod from the Amazon region of Brazil.
• Ambopteryx Jurassic · Carnivore · China (Asia)A tiny dinosaur with leathery, bat-like wings instead of feathered ones.
• Ammosaurus Jurassic · Herbivore · CanadaAmmosaurus is a long-necked plant-eating sauropod known from fossils found in Canada. It is classified within Sauropodomorpha · Anchisauridae. Its full size, appearance and biology are not yet widely documented.
• Ampelognathus Cretaceous · Herbivore · The United StatesAmpelognathus is a plant-eating ornithischian dinosaur known from fossils found in the United States. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Ampelosaurus Cretaceous · Herbivore · France (Europe)A French titanosaur whose back was studded with bony armour plates.
• Amphicoelias Jurassic · Herbivore · USA (Colorado)A slender, very long diplodocid cousin from the American West.
• Amtocephale Cretaceous · Herbivore · Mongolia (Asia)The oldest known dome-headed dinosaur from Asia.
• Amurosaurus Cretaceous · Herbivore · Russia (Asia)The best-known crested duck-billed dinosaur from Russia.
• Amygdalodon Jurassic · Herbivore · Argentina (South America)One of the few Middle Jurassic sauropods known from South America.
• Anabisetia Cretaceous · Herbivore · Argentina (South America)A small, lightly built plant-eater known from several good skeletons.
• Analong Jurassic · Herbivore · China (Asia)A long-necked mamenchisaur sauropod from China.
• Anasazisaurus Cretaceous · Herbivore · USA (New Mexico)A crested duck-bill with a short crest that flipped up over its eyes.
• Anchiceratops Cretaceous · Herbivore · Canada (Alberta)A horned dinosaur with a long, rectangular frill edged with bony knobs.
• Anchiornis Jurassic · Carnivore · China (Asia)A tiny four-winged feathered dinosaur whose fossil colours scientists have actually mapped.
• Anchisaurus Jurassic · Herbivore · USA (Connecticut)A small early plant-eater, one of the first dinosaurs found in North America.
• Andesaurus Cretaceous · Herbivore · Argentina (South America)A huge early titanosaur from near the foothills of the Andes.
• Angaturama Cretaceous · Carnivore · BrazilAngaturama is a predatory theropod dinosaur known from fossils found in Brazil. It is classified within Theropoda · Spinosauridae. Its full size, appearance and biology are not yet widely documented.
• Angolatitan Cretaceous · Herbivore · Angola (Africa)The first dinosaur ever named from Angola, a coastal long-neck.
• Angulomastacator Cretaceous · Herbivore · The United StatesAngulomastacator is a duck-billed plant-eating dinosaur known from fossils found in the United States. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Anhuilong Jurassic · Herbivore · China (Asia)A long-necked sauropod from eastern China.
• Aniksosaurus Cretaceous · Carnivore · Argentina (South America)A small predator found as a group, hinting it lived in packs.
• Animantarx Cretaceous · Herbivore · USA (Utah)A small armored nodosaur literally found by detecting its radioactivity.
• Ankylosaurus Cretaceous · Herbivore · North AmericaA living tank covered in thick bony armour, with a massive club at the end of its tail used to fend off predators.
• Anodontosaurus Cretaceous · Herbivore · Canada (Alberta)A heavily-armoured dinosaur with a big bony tail club.
• Anomalipes Cretaceous · Omnivore · China (Asia)A beaked oviraptorosaur with an unusually shaped foot.
• Anoplosaurus Cretaceous · Herbivore · The United KingdomAnoplosaurus is a armoured plant-eating dinosaur known from fossils found in the United Kingdom. It is classified within Ankylosauria · Nodosauridae. Its full size, appearance and biology are not yet widely documented.
• Anserimimus Cretaceous · Omnivore · Mongolia (Asia)A speedy ostrich-dinosaur with unusually powerful arms.
• Antarctopelta Cretaceous · Herbivore · AntarcticaAn armoured dinosaur and the very first dinosaur ever discovered on Antarctica.
• Antarctosaurus Cretaceous · Herbivore · Argentina (South America)A giant southern titanosaur (its name refers to the south, not to Antarctica).
• Antetonitrus Triassic · Herbivore · South AfricaOne of the oldest known sauropod-like dinosaurs, transitional toward the giants.
• Anzu Cretaceous · Carnivore · USA (North America)A tall, feathered, beaked dinosaur nicknamed the 'chicken from hell'.
• Aoniraptor Cretaceous · Carnivore · Argentina (South America)A medium predator related to the big-clawed megaraptorans.
• Aorun Jurassic · Carnivore · China (Asia)A tiny predator known from a young individual, from the Gobi region.
• Apatoraptor Cretaceous · Omnivore · Canada (Alberta)A beaked oviraptorosaur whose arm bones show feather-quill knobs.
• Apatosaurus Jurassic · Herbivore · USA (North America)A massive long-necked sauropod, a close cousin of Diplodocus, once popularly known as 'Brontosaurus'.
• Appalachiosaurus Cretaceous · Carnivore · USA (Alabama)A tyrannosaur from the eastern United States, which was an island continent at the time.
• Aquilarhinus Cretaceous · Herbivore · USA (Texas)A duck-bill with an arched, eagle-like nose and a shovel-shaped beak.
• Aquilops Cretaceous · Herbivore · USA (Montana)A tiny, early horned dinosaur about the size of a rabbit with a hooked beak.
• Arackar Cretaceous · Herbivore · Chile (South America)A small titanosaur, one of the few good dinosaurs from Chile.
• Aragosaurus Cretaceous · Herbivore · Spain (Europe)A large sauropod and the first dinosaur ever named from Spain.
• Aralosaurus Cretaceous · Herbivore · Kazakhstan (Asia)A duck-billed dinosaur from Central Asia with a small bony arch over its nose.
• Aratasaurus Cretaceous · Carnivore · Brazil (South America)A lightly built predator known from a well-preserved leg, named in 2020.
• Archaeoceratops Cretaceous · Herbivore · China (Asia)A small, two-legged early ancestor of the horned dinosaurs.
• Archaeocursor Jurassic · Herbivore · ChinaArchaeocursor is a plant-eating ornithischian dinosaur known from fossils found in China. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Archaeodontosaurus Jurassic · Herbivore · MadagascarArchaeodontosaurus is a long-necked plant-eating sauropod known from fossils found in Madagascar. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Archaeopteryx Jurassic · Carnivore · Germany (Europe)A crow-sized feathered creature that sits right at the boundary between dinosaurs and birds, with wings and feathers but also teeth and a long bony tail.
• Archaeornithoides Cretaceous · Carnivore · MongoliaArchaeornithoides is a predatory theropod dinosaur known from fossils found in Mongolia. It is classified within Theropoda · Troodontidae. Its full size, appearance and biology are not yet widely documented.
• Archaeornithomimus Cretaceous · Herbivore · China (Asia)An early ostrich-like dinosaur with a toothless beak and long running legs.
• Arcovenator Cretaceous · Carnivore · France (Europe)A European abelisaur, a short-faced predator with a thick brow.
• Arcusaurus Jurassic · Herbivore · South AfricaA small early plant-eater from the early Jurassic of South Africa.
• Ardetosaurus Jurassic · Herbivore · USA (Wyoming)A long, whip-tailed Diplodocus relative named in 2024.
• Arenysaurus Cretaceous · Herbivore · SpainArenysaurus is a duck-billed plant-eating dinosaur known from fossils found in Spain. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Argentinosaurus Cretaceous · Herbivore · Argentina (South America)One of the largest land animals of all time, a titanosaur about as long as three school buses.
• Argyrosaurus Cretaceous · Herbivore · Argentina (South America)A giant titanosaur known mainly from an enormous forelimb.
• Aristosuchus Cretaceous · Carnivore · United KingdomA small, fast predator from the Isle of Wight.
• Arkansaurus Cretaceous · Carnivore · The United StatesArkansaurus is a predatory theropod dinosaur known from fossils found in the United States. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Arrhinoceratops Cretaceous · Herbivore · Canada (Alberta)A horned dinosaur first thought to lack a nose horn.
• Arrudatitan Cretaceous · Herbivore · Brazil (South America)A titanosaur with a flexible, downward-curving tail like Aeolosaurus.
• Arstanosaurus Cretaceous · Herbivore · Kazakhstan (Asia)A duck-billed dinosaur from the Cretaceous of Kazakhstan.
• Asfaltovenator Jurassic · Carnivore · Argentina (South America)An early predator that blurs the line between megalosaurs and allosaurs.
• Asiaceratops Cretaceous · Herbivore · Uzbekistan (Asia)A small, early frilled dinosaur from Central Asia.
• Asiatyrannis Cretaceous · Carnivore · China (Asia)A mid-sized tyrannosaur from southern China, named in 2024.
• Asiatyrannus Cretaceous · Carnivore · ChinaAsiatyrannus is a predatory theropod dinosaur known from fossils found in China. It is classified within Theropoda · Tyrannosauridae. Its full size, appearance and biology are not yet widely documented.
• Asilisaurus Triassic · Omnivore · TanzaniaAsilisaurus is a early dinosaur relative known from fossils found in Tanzania. It is classified within Dinosauriformes · Silesauridae. Its full size, appearance and biology are not yet widely documented.
• Astigmasaura Cretaceous · Herbivore · ArgentinaAstigmasaura is a long-necked plant-eating sauropod known from fossils found in Argentina. It is classified within Sauropoda · Rebbachisauridae. Its full size, appearance and biology are not yet widely documented.
• Astrodon Cretaceous · Herbivore · USA (Maryland)A tall brachiosaur and the official state dinosaur of Maryland.
• Astrophocaudia Cretaceous · Herbivore · USA (Texas)A long-necked sauropod from the early Cretaceous of Texas.
• Asylosaurus Triassic · Herbivore · United Kingdom (England)A small early plant-eater whose bones had a lucky escape.
• Atacamatitan Cretaceous · Herbivore · ChileAtacamatitan is a long-necked plant-eating sauropod known from fossils found in Chile. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Athenar Jurassic · Herbivore · The United StatesAthenar is a long-necked plant-eating sauropod known from fossils found in the United States. It is classified within Sauropoda · Dicraeosauridae. Its full size, appearance and biology are not yet widely documented.
• Atlasaurus Jurassic · Herbivore · Morocco (Africa)A Moroccan sauropod with proportionally long legs and a shorter neck than most.
• Atlascopcosaurus Cretaceous · Herbivore · AustraliaA small plant-eater from the cool polar forests of ancient Australia.
• Atrociraptor Cretaceous · Carnivore · Canada (Alberta)A small, fierce raptor with a short, deep snout full of teeth.
• Atsinganosaurus Cretaceous · Herbivore · France (Europe)A titanosaur from southern France, perhaps a migrant from elsewhere in Europe.
• Aucasaurus Cretaceous · Carnivore · Argentina (South America)A slender, short-armed predator related to Carnotaurus.
• Augustynolophus Cretaceous · Herbivore · USA (California)A duck-billed dinosaur and the official state dinosaur of California.
• Auroraceratops Cretaceous · Herbivore · China (Asia)A small, early horned dinosaur, an ancestor-style cousin of Triceratops.
• Aurornis Jurassic · Carnivore · China (Asia)A tiny, early bird-like dinosaur near the very root of the bird family tree.
• Australodocus Jurassic · Herbivore · Tanzania (Africa)A long-necked sauropod from the Tendaguru beds of Tanzania.
• Australotitan Cretaceous · Herbivore · AustraliaThe largest dinosaur ever found in Australia, nicknamed 'Cooper'.
• Australovenator Cretaceous · Carnivore · AustraliaA lightweight, fast Australian predator nicknamed 'Banjo'.
• Austrocheirus Cretaceous · Carnivore · Argentina (South America)A medium predator that kept fairly long, usable arms.
• Austroposeidon Cretaceous · Herbivore · Brazil (South America)The largest dinosaur known from Brazil, a colossal titanosaur.
• Austroraptor Cretaceous · Carnivore · Argentina (South America)One of the largest raptors, with a long snout and surprisingly short arms.
• Austrosaurus Cretaceous · Herbivore · AustraliaOne of the first big sauropods discovered in Australia.
• Avaceratops Cretaceous · Herbivore · USA (Montana)A small horned dinosaur named after the wife of its discoverer.
• Aviatyrannis Jurassic · Carnivore · Portugal (Europe)One of the oldest and smallest known tyrannosaur relatives.
• Avimimus Cretaceous · Herbivore · Mongolia (Asia)A small, bird-like feathered dinosaur with a beak and very long legs.

B

• Baalsaurus Cretaceous · Herbivore · ArgentinaBaalsaurus is a long-necked plant-eating sauropod known from fossils found in Argentina. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Bactrosaurus Cretaceous · Herbivore · China & Mongolia (Asia)One of the earliest known duck-billed dinosaurs.
• Bagaceratops Cretaceous · Herbivore · Mongolia (Asia)A small, frilled early relative of Triceratops with a tiny nose horn.
• Bagaraatan Cretaceous · Carnivore · Mongolia (Asia)A small, mysterious Mongolian predator whose exact family is still debated.
• Bagualia Jurassic · Herbivore · Argentina (South America)An early true sauropod that marks the rise of the giant long-necks.
• Bagualosaurus Triassic · Herbivore · Brazil (South America)An early long-necked plant-eater from the Triassic of Brazil.
• Bahariasaurus Cretaceous · Carnivore · Egypt (Africa)A giant African predator that shared its swampy home with Spinosaurus.
• Bainoceratops Cretaceous · Herbivore · Mongolia (Asia)A small, frilled relative of Protoceratops from the Gobi Desert.
• Baiyinosaurus Jurassic · Herbivore · China (Asia)An early plated dinosaur from the Middle Jurassic of China.
• Bajadasaurus Cretaceous · Herbivore · Argentina (South America)A sauropod with long, forward-pointing spikes sweeping off its neck.
• Balaur Cretaceous · Carnivore · Romania (Europe)An island-dwelling raptor with TWO sickle claws on each foot instead of one.
• Balochisaurus Cretaceous · Herbivore · Pakistan (Asia)A titanosaur from Balochistan known only from scraps; many scientists regard it as too poorly known to be a valid genus.
• Bambiraptor Cretaceous · Carnivore · USA (Montana)A tiny, big-brained raptor known from a beautifully complete young skeleton.
• Banji Cretaceous · Carnivore · China (Asia)A small beaked oviraptorid known from a striped-crested skull.
• Bannykus Cretaceous · Carnivore · China (Asia)An insect-eating alvarezsaur caught mid-way in the group's evolution.
• Baotianmansaurus Cretaceous · Herbivore · ChinaBaotianmansaurus is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Barapasaurus Jurassic · Herbivore · India (Asia)One of the earliest large long-necked sauropods, known from hundreds of bones.
• Barilium Cretaceous · Herbivore · United KingdomA bulky iguanodont from the early Cretaceous of England.
• Barosaurus Jurassic · Herbivore · USA (North America)A long-necked diplodocid similar to Diplodocus but with an even longer neck.
• Barrosasaurus Cretaceous · Herbivore · Argentina (South America)A giant titanosaur from the Sierra Barrosa of Patagonia.
• Barsboldia Cretaceous · Herbivore · Mongolia (Asia)A large crested duck-bill from the Gobi Desert.
• Baryonyx Cretaceous · Carnivore · England (Europe)A fish-eating relative of Spinosaurus with a crocodile-like snout and a giant curved thumb claw.
• Bashanosaurus Jurassic · Herbivore · China (Asia)One of the oldest known stegosaurs, small and primitive.
• Batyrosaurus Cretaceous · Herbivore · Kazakhstan (Asia)A primitive duck-bill relative from the steppes of Kazakhstan.
• Baurutitan Cretaceous · Herbivore · Brazil (South America)A titanosaur from the Bauru rocks, known from a string of tail bones.
• Bayannurosaurus Cretaceous · Herbivore · China (Asia)A large iguanodont known from a nearly complete skeleton.
• Becklespinax Cretaceous · Carnivore · United Kingdom (England)A large predator known from tall-spined backbones.
• Beg Cretaceous · Herbivore · Mongolia (Asia)A small, early frilled dinosaur from the Gobi Desert, named in 2022.
• Beibeilong Cretaceous · Omnivore · China (Asia)A giant oviraptorosaur known from a famous embryo nicknamed 'Baby Louie'.
• Beipiaognathus Cretaceous · Carnivore · China (Asia)A small, fuzzy compsognathid predator from Liaoning.
• Beipiaosaurus Cretaceous · Herbivore · China (Asia)An early feathered therizinosaur with long claws and shaggy, hair-like plumage.
• Beishanlong Cretaceous · Herbivore · China (Asia)One of the largest ostrich-like dinosaurs ever found (likely an omnivore).
• Bellusaurus Jurassic · Herbivore · China (Asia)A small sauropod known from a bonebed of many young individuals.
• Berberosaurus Jurassic · Carnivore · Morocco (Africa)An early ceratosaur from North Africa, near the base of that group.
• Berthasaura Cretaceous · Herbivore · Brazil (South America)A small, toothless beaked ceratosaur that likely ate plants.
• Bicentenaria Cretaceous · Carnivore · Argentina (South America)A small, agile predator known from a bonebed of many individuals.
• Bicharracosaurus Jurassic · Herbivore · ArgentinaBicharracosaurus is a long-necked plant-eating sauropod known from fossils found in Argentina. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Bienosaurus Jurassic · Herbivore · China (Asia)An early armored plant-eater from Yunnan, China.
• Bissektipelta Cretaceous · Herbivore · Uzbekistan (Asia)An armored dinosaur whose brain was studied from a preserved skull.
• Bistahieversor Cretaceous · Carnivore · USA (New Mexico)A deep-snouted southern tyrannosaur with an extra forehead opening.
• Bisticeratops Cretaceous · Herbivore · USA (New Mexico)A horned dinosaur from New Mexico, named in 2023.
• Blasisaurus Cretaceous · Herbivore · SpainBlasisaurus is a duck-billed plant-eating dinosaur known from fossils found in Spain. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Blikanasaurus Triassic · Herbivore · South AfricaA stocky, heavily built early sauropod relative.
• Bolong Cretaceous · Herbivore · China (Asia)A medium iguanodont plant-eater from northeastern China.
• Bonapartenykus Cretaceous · Carnivore · Argentina (South America)A large insect-eating alvarezsaur found near its own eggs.
• Bonapartesaurus Cretaceous · Herbivore · Argentina (South America)A duck-billed dinosaur from Patagonia, named for José Bonaparte.
• Bonatitan Cretaceous · Herbivore · Argentina (South America)A small titanosaur named after famed palaeontologist José Bonaparte.
• Bonitasaura Cretaceous · Herbivore · Argentina (South America)A medium titanosaur with a square-jawed, beak-like cropping edge in its mouth.
• Borealopelta Cretaceous · Herbivore · Canada (Alberta)An armoured nodosaur preserved so perfectly it looks like a statue, with skin and armour intact.
• Borealosaurus Cretaceous · Herbivore · China (Asia)A titanosaur from Liaoning in northeastern China.
• Boreonykus Cretaceous · Carnivore · Canada (Alberta)A sickle-clawed raptor found among a herd of dead horned dinosaurs.
• Borogovia Cretaceous · Carnivore · Mongolia (Asia)A slender troodontid with an unusually straight second toe claw.
• Brachiosaurus Jurassic · Herbivore · North AmericaA colossal long-necked sauropod with front legs longer than its back legs, giving it a giraffe-like stance perfect for reaching high vegetation.
• Brachylophosaurus Cretaceous · Herbivore · USA (Montana)A duck-bill with a flat, paddle-like crest, known from spectacular mummified fossils.
• Brachytrachelopan Jurassic · Herbivore · Argentina (South America)A bizarre sauropod with one of the shortest necks of any in its group.
• Bradycneme Cretaceous · Carnivore · Romania (Europe)A bird-like predator from the island world of late Cretaceous Romania.
• Brasilotitan Cretaceous · Herbivore · Brazil (South America)A titanosaur with an unusual L-shaped lower jaw.
• Bravasaurus Cretaceous · Herbivore · Argentina (South America)A small titanosaur from the La Rioja region of Argentina.
• Bravoceratops Cretaceous · Herbivore · USA (Texas)A large horned dinosaur from the late Cretaceous of Texas.
• Breviceratops Cretaceous · Herbivore · Mongolia (Asia)A small, frilled relative of Protoceratops from the Gobi Desert.
• Brighstoneus Cretaceous · Herbivore · United KingdomA bumpy-nosed iguanodont from the Isle of Wight.
• Brohisaurus Jurassic · Herbivore · Pakistan (Asia)A poorly-known Jurassic sauropod from the Kirthar Range; only fragmentary bones are known and its validity is uncertain.
• Brontomerus Cretaceous · Herbivore · USA (Utah)A sauropod with enormous hip muscles, perhaps for kicking attackers.
• Brontosaurus Jurassic · Herbivore · USA (North America)A famous long-necked giant whose name was retired for a century, then revived.
• Brontotholus Cretaceous · Herbivore · The United StatesBrontotholus is a thick-skulled plant-eating dinosaur known from fossils found in the United States. It is classified within Pachycephalosauria. Its full size, appearance and biology are not yet widely documented.
• Bruhathkayosaurus Cretaceous · Herbivore · India (Asia)A titanosaur that, from its limited remains, may have rivalled the largest dinosaurs ever.
• Buitreraptor Cretaceous · Carnivore · Argentina (South America)A small, slender raptor from South America with a long, narrow snout.
• Burianosaurus Cretaceous · Herbivore · Czech Republic (Europe)The first dinosaur ever named from the Czech Republic.
• Buriolestes Triassic · Carnivore · Brazil (South America)An early ancestor of the giant sauropods that was still a small meat-eater.
• Bustingorrytitan Cretaceous · Herbivore · Argentina (South America)A colossal titanosaur, among the largest land animals ever, named in 2024.
• Byronosaurus Cretaceous · Carnivore · Mongolia (Asia)A slender, bird-like troodontid with needle-like teeth.

C

• Caenagnathasia Cretaceous · Omnivore · UzbekistanCaenagnathasia is a beaked, feathered dinosaur known from fossils found in Uzbekistan. It is classified within Theropoda · Caenagnathidae. Its full size, appearance and biology are not yet widely documented.
• Caenagnathus Cretaceous · Omnivore · Canada (Alberta)A beaked, bird-like oviraptorosaur whose jaw was first mistaken for a bird's.
• Caieiria Cretaceous · Herbivore · Brazil (South America)A titanosaur from the dinosaur-rich Bauru rocks of Brazil.
• Caihong Jurassic · Carnivore · China (Asia)A tiny, bird-like dinosaur whose feathers shimmered with iridescent colour.
• Calamosaurus Cretaceous · Carnivore · The United KingdomCalamosaurus is a predatory theropod dinosaur known from fossils found in the United Kingdom. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Calamospondylus Cretaceous · Carnivore · United KingdomA small, bird-like predator from the Isle of Wight.
• Caletodraco Cretaceous · Carnivore · FranceCaletodraco is a predatory theropod dinosaur known from fossils found in France. It is classified within Theropoda · Abelisauridae. Its full size, appearance and biology are not yet widely documented.
• Callovosaurus Jurassic · Herbivore · United KingdomOne of the earliest known relatives of the iguanodonts.
• Camarasaurus Jurassic · Herbivore · USA (North America)The most common sauropod of the Jurassic Morrison Formation, with a boxy head.
• Camarillasaurus Cretaceous · Carnivore · Spain (Europe)An unusual Spanish predator with debated family ties.
• Camelotia Triassic · Herbivore · United Kingdom (England)A large, heavily built early plant-eater from England.
• Campananeyen Cretaceous · Herbivore · ArgentinaCampananeyen is a long-necked plant-eating sauropod known from fossils found in Argentina. It is classified within Sauropoda · Rebbachisauridae. Its full size, appearance and biology are not yet widely documented.
• Camposaurus Triassic · Carnivore · USA (Arizona)One of the oldest known predatory dinosaurs from North America.
• Camptosaurus Jurassic · Herbivore · USA (North America)A sturdy Jurassic plant-eater that could walk on either two or four legs.
• Canardia Cretaceous · Herbivore · FranceCanardia is a duck-billed plant-eating dinosaur known from fossils found in France. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Carcharodontosaurus Cretaceous · Carnivore · North Africa (Morocco & Egypt)A colossal African predator, as big as T. rex, named for its enormous shark-like teeth.
• Cardiodon Jurassic · Herbivore · United KingdomA sauropod named from a single heart-shaped tooth, one of the first ever found.
• Carnotaurus Cretaceous · Carnivore · Argentina (South America)A fast, lightly-built predator famous for the two thick horns above its eyes and absurdly tiny arms.
• Cathartesaura Cretaceous · Herbivore · Argentina (South America)A comb-toothed sauropod from Patagonia.
• Cathetosaurus Jurassic · Herbivore · USA (Colorado)A Camarasaurus relative that may have reared up to feed.
• Caudipteryx Cretaceous · Herbivore · China (Asia)A peacock-sized feathered dinosaur with a fan of tail feathers (likely an omnivore).
• Cedarosaurus Cretaceous · Herbivore · USA (Utah)A brachiosaur cousin from the Cedar Mountain rocks of Utah.
• Cedarpelta Cretaceous · Herbivore · USA (Utah)A large armored dinosaur from the Cedar Mountain rocks of Utah.
• Cedrorestes Cretaceous · Herbivore · USA (Utah)An iguanodont from the Cedar Mountain rocks of Utah.
• Centrosaurus Cretaceous · Herbivore · Canada (North America)A horned dinosaur with a single large nose horn that lived in huge herds.
• Cerasinops Cretaceous · Herbivore · USA (Montana)A small, frilled plant-eater near the base of the horned dinosaur tree.
• Ceratonykus Cretaceous · Carnivore · Mongolia (Asia)A tiny, one-clawed insect-eater from the Gobi Desert.
• Ceratosaurus Jurassic · Carnivore · USA & PortugalA Jurassic predator with a distinctive blade-like horn on its snout and a row of bony armour down its back.
• Ceratosuchops Cretaceous · Carnivore · United KingdomA fish-eating spinosaur with small horns over its eyes.
• Cetiosauriscus Jurassic · Herbivore · United KingdomA long-tailed sauropod from the Middle Jurassic of England.
• Cetiosaurus Jurassic · Herbivore · England (Europe)An early sauropod from England, one of the first sauropods ever discovered.
• Chadititan Cretaceous · Herbivore · Argentina (South America)A slender, smaller titanosaur from Patagonia, named in 2024.
• Chakisaurus Cretaceous · Herbivore · Argentina (South America)A fast-running plant-eater from Patagonia, named in 2024.
• Changchunsaurus Cretaceous · Herbivore · China (Asia)A small, fast plant-eater known from a well-preserved skull.
• Changdusaurus Jurassic · Herbivore · ChinaChangdusaurus is a plated plant-eating dinosaur known from fossils found in China. It is classified within Thyreophora · Stegosauridae. Its full size, appearance and biology are not yet widely documented.
• Changmiania Cretaceous · Herbivore · China (Asia)A small plant-eater preserved as if asleep in its burrow when buried alive.
• Changyuraptor Cretaceous · Carnivore · China (Asia)A large four-winged raptor with the longest feathers of any non-bird dinosaur.
• Chaoyangsaurus Jurassic · Herbivore · China (Asia)A small, beaked early relative of the horned dinosaurs.
• Charonosaurus Cretaceous · Herbivore · China (Asia)A huge, long-crested duck-billed dinosaur from along the China–Russia border.
• Chasmosaurus Cretaceous · Herbivore · Canada (North America)A horned dinosaur with a very large frill full of big openings to save weight.
• Chebsaurus Jurassic · Herbivore · AlgeriaChebsaurus is a long-necked plant-eating sauropod known from fossils found in Algeria. It is classified within Sauropoda · Cetiosauridae. Its full size, appearance and biology are not yet widely documented.
• Chenanisaurus Cretaceous · Carnivore · Morocco (Africa)A short-faced abelisaur and one of the very last dinosaurs in Africa.
• Chialingosaurus Jurassic · Herbivore · China (Asia)A small, slender plated dinosaur from Jurassic China.
• Chilantaisaurus Cretaceous · Carnivore · ChinaChilantaisaurus is a predatory theropod dinosaur known from fossils found in China. It is classified within Theropoda · Neovenatoridae. Its full size, appearance and biology are not yet widely documented.
• Chilesaurus Jurassic · Herbivore · Chile (South America)A baffling plant-eating relative of the meat-eaters, mixing features from many groups.
• Chindesaurus Triassic · Carnivore · USA (Arizona)An early predator from the Petrified Forest of Arizona.
• Chinshakiangosaurus Jurassic · Herbivore · China (Asia)One of the most primitive true sauropods known.
• Chirostenotes Cretaceous · Carnivore · Canada (Alberta)A long-fingered, feathered, beaked dinosaur (likely an omnivore).
• Choconsaurus Cretaceous · Herbivore · Argentina (South America)A titanosaur that helps fill the gap between early and advanced forms.
• Choyrodon Cretaceous · Herbivore · Mongolia (Asia)An early duck-bill relative from the Gobi region of Mongolia.
• Chromogisaurus Triassic · Herbivore · Argentina (South America)A small early plant-eater from the dawn of the dinosaurs.
• Chuandongocoelurus Jurassic · Carnivore · China (Asia)A small predator from the Middle Jurassic of Sichuan, China.
• Chuanjiesaurus Jurassic · Herbivore · China (Asia)A giant long-necked sauropod from Yunnan, China.
• Chuanqilong Cretaceous · Herbivore · ChinaChuanqilong is a armoured plant-eating dinosaur known from fossils found in China. It is classified within Ankylosauria · Ankylosauridae. Its full size, appearance and biology are not yet widely documented.
• Chubutisaurus Cretaceous · Herbivore · ArgentinaChubutisaurus is a long-necked plant-eating sauropod known from fossils found in Argentina. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Chucarosaurus Cretaceous · Herbivore · Argentina (South America)A colossal titanosaur, one of the largest land animals ever, named in 2023.
• Chungkingosaurus Jurassic · Herbivore · China (Asia)A small Chinese stegosaur with a mix of plates and spikes along its back.
• Chuxiongosaurus Jurassic · Herbivore · China (Asia)One of the most primitive true sauropods, known from a skull from Yunnan.
• Cienciargentina Cretaceous · Herbivore · ArgentinaCienciargentina is a long-necked plant-eating sauropod known from fossils found in Argentina. It is classified within Sauropoda · Rebbachisauridae. Its full size, appearance and biology are not yet widely documented.
• Citipati Cretaceous · Carnivore · Mongolia (Asia)A feathered, beaked oviraptorid famous for fossils found sitting on their nests.
• Claosaurus Cretaceous · Herbivore · USA (Kansas)A primitive duck-bill whose body washed out into an ancient sea.
• Coahuilaceratops Cretaceous · Herbivore · Mexico (North America)A large horned dinosaur with some of the longest brow horns known.
• Coahuilasaurus Cretaceous · Herbivore · MexicoCoahuilasaurus is a duck-billed plant-eating dinosaur known from fossils found in Mexico. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Coelophysis Triassic · Carnivore · USA (New Mexico)One of the earliest dinosaurs, a slender, fast hunter known from hundreds of skeletons found together.
• Coelurus Jurassic · Carnivore · USA (Wyoming)A small, lightly-built predator with hollow, air-filled bones.
• Colepiocephale Cretaceous · Herbivore · USA (Montana)One of the oldest known dome-headed dinosaurs.
• Coloradisaurus Triassic · Herbivore · Argentina (South America)An early long-necked plant-eater from northwestern Argentina.
• Comahuesaurus Cretaceous · Herbivore · Argentina (South America)A comb-toothed sauropod from the Comahue region of Argentina.
• Compsognathus Jurassic · Carnivore · Germany & France (Europe)A tiny, nimble predator about the size of a turkey that hunted insects and small lizards.
• Comptonatus Cretaceous · Herbivore · United KingdomA bulky iguanodont from the Isle of Wight, named in 2024.
• Concavenator Cretaceous · Carnivore · Spain (Europe)A medium predator with a strange tall, triangular hump on its back.
• Conchoraptor Cretaceous · Carnivore · Mongolia (Asia)A small, crestless oviraptorid that may have eaten shellfish.
• Condorraptor Jurassic · Carnivore · Argentina (South America)A medium predator from the Middle Jurassic of Patagonia.
• Confuciusornis Cretaceous · Carnivore · China (Asia)One of the earliest birds with a true toothless beak, known from thousands of fossils.
• Convolosaurus Cretaceous · Herbivore · USA (Texas)A small plant-eater found as a flock of many young individuals.
• Coronosaurus Cretaceous · Herbivore · Canada (Alberta)A horned dinosaur whose frill bristled with a crown of bony spikes.
• Corythoraptor Cretaceous · Carnivore · China (Asia)A feathered, beaked oviraptorid with a tall head crest like a cassowary.
• Corythosaurus Cretaceous · Herbivore · Canada (North America)A crested duck-bill whose tall, rounded crest resembled a Corinthian helmet.
• Craspedodon Cretaceous · Herbivore · BelgiumCraspedodon is a plant-eating ornithischian dinosaur known from fossils found in Belgium. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Cratonavis Cretaceous · Carnivore · China (Asia)An early bird with a dinosaur-like head on a bird-like body, named in 2023.
• Crichtonpelta Cretaceous · Herbivore · China (Asia)An armored dinosaur once grouped with Crichtonsaurus, both named for an author.
• Crichtonsaurus Cretaceous · Herbivore · China (Asia)A club-tailed armored dinosaur from northeastern China.
• Cristatusaurus Cretaceous · Carnivore · Niger (Africa)A fish-eating spinosaur from the rivers of ancient North Africa.
• Crittendenceratops Cretaceous · Herbivore · USA (Arizona)A horned dinosaur from the rare late Cretaceous rocks of Arizona.
• Cruxicheiros Jurassic · Carnivore · The United KingdomCruxicheiros is a predatory theropod dinosaur known from fossils found in the United Kingdom. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Cryolophosaurus Jurassic · Carnivore · AntarcticaAn early Jurassic predator with a curly head crest, nicknamed 'Elvisaurus'.
• Cumnoria Jurassic · Herbivore · United KingdomA small iguanodont from the Jurassic of England.

D

• Daanosaurus Jurassic · Herbivore · China (Asia)A young sauropod related to the short-faced Brachiosaurus group.
• Dacentrurus Jurassic · Herbivore · England (Europe)One of the largest stegosaurs, a heavily-built European plant-eater with a spiky tail.
• Daemonosaurus Triassic · Carnivore · USA (New Mexico)A buck-toothed early predator with a short, deep snout.
• Dahalokely Cretaceous · Carnivore · Madagascar (Africa)A medium predator that lived when Madagascar and India were still joined.
• Dakotadon Cretaceous · Herbivore · USA (South Dakota)An iguanodont plant-eater from South Dakota.
• Dakotaraptor Cretaceous · Carnivore · USA (South Dakota)A giant feathered raptor that lived right alongside T. rex.
• Dakotasaurus Cretaceous · Herbivore · The United StatesDakotasaurus is a plant-eating ornithischian dinosaur known from fossils found in the United States. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Daliansaurus Cretaceous · Carnivore · China (Asia)A small troodontid with an extra enlarged sickle claw on each foot.
• Dashanpusaurus Jurassic · Herbivore · China (Asia)A sauropod from the famous Dashanpu fossil beds of Sichuan.
• Daspletosaurus Cretaceous · Carnivore · Canada & USAA powerful, heavily-built tyrannosaur and a close relative of T. rex.
• Datai Cretaceous · Herbivore · China (Asia)An armored dinosaur from southern China, named in 2024.
• Datanglong Cretaceous · Carnivore · China (Asia)A large shark-toothed predator from southern China.
• Datonglong Cretaceous · Herbivore · China (Asia)A duck-billed dinosaur known from a distinctive lower jaw.
• Datousaurus Jurassic · Herbivore · China (Asia)A Jurassic sauropod with an unusually bulky, deep skull.
• Daurlong Cretaceous · Carnivore · China (Asia)A feathered raptor that preserved a rare trace of its blue-grey guts.
• Daurosaurus Jurassic · Herbivore · RussiaDaurosaurus is a dinosaur known from fossils found in Russia. It is classified within Ornithopoda · Hypsilophodontidae. Its full size, appearance and biology are not yet widely documented.
• Daxiatitan Cretaceous · Herbivore · China (Asia)A giant Chinese titanosaur with a very long neck.
• Deinocheirus Cretaceous · Herbivore · Mongolia (Asia)A bizarre giant with a humped back, a duck-like bill, and arms 2.4 m long (likely an omnivore).
• Deinonychus Cretaceous · Carnivore · USA (North America)A wolf-sized raptor whose discovery helped prove dinosaurs were active, fast, bird-like animals.
• Delapparentia Cretaceous · Herbivore · Spain (Europe)A large iguanodont plant-eater from early Cretaceous Spain.
• Deltadromeus Cretaceous · Carnivore · Egypt (Africa)A lightly-built, long-legged African predator built for speed.
• Demandasaurus Cretaceous · Herbivore · Spain (Europe)A Spanish relative of the wide-mouthed Nigersaurus.
• Denversaurus Cretaceous · Herbivore · USA (South Dakota)One of the very last club-less armored dinosaurs before the extinction.
• Dgkhansaurus Cretaceous · Herbivore · PakistanDgkhansaurus is a long-necked plant-eating sauropod known from fossils found in Pakistan. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Diabloceratops Cretaceous · Herbivore · USA (Utah)A horned dinosaur with two tall, devilish spikes rising from its frill.
• Diamantinasaurus Cretaceous · Herbivore · AustraliaA stocky Australian titanosaur known from several good skeletons.
• Dicraeosaurus Jurassic · Herbivore · Tanzania (Africa)A medium sauropod with a relatively short neck and forked spines along its back.
• Dilong Cretaceous · Carnivore · China (Asia)An early, small tyrannosaur covered in simple downy feathers.
• Dilophosaurus Jurassic · Carnivore · USA (Arizona)An early large predator with a pair of thin bony crests on its head, likely used for display.
• Diluvicursor Cretaceous · Herbivore · AustraliaA small, strong-legged runner buried in an ancient river flood.
• Dineobellator Cretaceous · Carnivore · USA (New Mexico)A nimble raptor whose bones show signs of old battle injuries.
• Dinheirosaurus Jurassic · Herbivore · Portugal (Europe)A long, whip-tailed cousin of Diplodocus from Jurassic Portugal.
• Diodorus Triassic · Omnivore · MoroccoDiodorus is a early dinosaur relative known from fossils found in Morocco. It is classified within Dinosauriformes · Silesauridae. Its full size, appearance and biology are not yet widely documented.
• Diplodocus Jurassic · Herbivore · North AmericaAn extremely long sauropod with a slender neck and an even longer, whip-like tail. It likely fed on low-growing plants by sweeping its head side to side.
• Diuqin Cretaceous · Carnivore · Argentina (South America)A slashing, big-clawed megaraptoran predator from Patagonia, named in 2024.
• Dongbeititan Cretaceous · Herbivore · China (Asia)A long-necked sauropod from the famous feathered-dinosaur beds of Liaoning.
• Dongyangopelta Cretaceous · Herbivore · China (Asia)An armored, club-less nodosaur from eastern China.
• Dongyangosaurus Cretaceous · Herbivore · China (Asia)A long-necked sauropod from eastern China.
• Doolysaurus Cretaceous · Herbivore · South KoreaDoolysaurus is a dinosaur known from fossils found in South Korea. It is classified within Ornithopoda · Thescelosauridae. Its full size, appearance and biology are not yet widely documented.
• Draconyx Jurassic · Herbivore · Portugal (Europe)A plant-eating ornithopod from the rich Lourinhã beds of Portugal.
• Dracopelta Cretaceous · Herbivore · PortugalDracopelta is a plant-eating ornithischian dinosaur known from fossils found in Portugal. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Dracoraptor Jurassic · Carnivore · United Kingdom (Wales)One of the earliest Jurassic predators, from the coast of Wales.
• Dracorex Cretaceous · Herbivore · USA (South Dakota)A spiky, flat-headed bonehead dinosaur with a dragon-like skull.
• Dracovenator Jurassic · Carnivore · South AfricaA crested early predator related to Dilophosaurus.
• Dreadnoughtus Cretaceous · Herbivore · Argentina (South America)A titanic sauropod known from an unusually complete giant skeleton.
• Dromaeosauroides Cretaceous · Carnivore · DenmarkDromaeosauroides is a predatory theropod dinosaur known from fossils found in Denmark. It is classified within Theropoda · Dromaeosauridae. Its full size, appearance and biology are not yet widely documented.
• Dromaeosaurus Cretaceous · Carnivore · Canada (North America)A small, powerful raptor with an unusually strong bite the group's namesake.
• Dromiceiomimus Cretaceous · Omnivore · CanadaDromiceiomimus is a lightly-built ostrich-like dinosaur known from fossils found in Canada. It is classified within Theropoda · Ornithomimidae. Its full size, appearance and biology are not yet widely documented.
• Drusilasaura Cretaceous · Herbivore · Argentina (South America)A huge titanosaur from southern Patagonia.
• Dryosaurus Jurassic · Herbivore · USA & TanzaniaA small, fast, two-legged plant-eater built like a sprinter.
• Dryptosaurus Cretaceous · Carnivore · USA (New Jersey)An early eastern-American tyrannosaur, once famously pictured leaping in a classic painting.
• Dubreuillosaurus Jurassic · Carnivore · France (Europe)A megalosaur predator with a long, low snout.
• Duonychus Cretaceous · Herbivore · MongoliaDuonychus is a long-clawed plant-eating theropod known from fossils found in Mongolia. It is classified within Theropoda · Therizinosauridae. Its full size, appearance and biology are not yet widely documented.
• Duriatitan Jurassic · Herbivore · United KingdomA large sauropod known from an upper arm bone from the Dorset coast.
• Duriavenator Jurassic · Carnivore · United KingdomA megalosaur predator from the Jurassic coast of Dorset.
• Dynamoterror Cretaceous · Carnivore · USA (New Mexico)A large tyrannosaur from the late Cretaceous American Southwest.
• Dyoplosaurus Cretaceous · Herbivore · Canada (Alberta)An armored dinosaur known from a well-preserved tail club.
• Dysalotosaurus Jurassic · Herbivore · Tanzania (Africa)A small, fleet-footed plant-eater known from thousands of bones.
• Dyslocosaurus Jurassic · Herbivore · USA (Wyoming)A whip-tailed diplodocid whose exact identity puzzled scientists.
• Dystrophaeus Jurassic · Herbivore · USA (Utah)One of the earliest sauropods known from North America.
• Dzharacursor Cretaceous · Omnivore · UzbekistanDzharacursor is a lightly-built ostrich-like dinosaur known from fossils found in Uzbekistan. It is classified within Theropoda · Ornithomimidae. Its full size, appearance and biology are not yet widely documented.
• Dzharaonyx Cretaceous · Carnivore · Uzbekistan (Asia)A tiny insect-eating alvarezsaur from Central Asia.
• Dzharatitanis Cretaceous · Herbivore · Uzbekistan (Asia)A long-necked sauropod, possibly the last of the comb-toothed rebbachisaurs.

E

• Echinodon Cretaceous · Omnivore · United KingdomA tiny plant-eater with little fang-like teeth, from southern England.
• Edmontonia Cretaceous · Herbivore · USA & CanadaA heavily armoured nodosaur with large, forward-pointing shoulder spikes.
• Edmontosaurus Cretaceous · Herbivore · USA & CanadaA huge duck-billed dinosaur that lived right alongside T. rex and travelled in large herds.
• Efraasia Triassic · Herbivore · Germany (Europe)An early long-necked plant-eater from late Triassic Germany.
• Einiosaurus Cretaceous · Herbivore · USA (Montana)A horned dinosaur with a forward-curving nose horn shaped like a can-opener.
• Ekrixinatosaurus Cretaceous · Carnivore · Argentina (South America)A big-headed abelisaur predator with a powerful bite.
• Elaltitan Cretaceous · Herbivore · ArgentinaElaltitan is a long-necked plant-eating sauropod known from fossils found in Argentina. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Elaphrosaurus Jurassic · Carnivore · Tanzania (Africa)A slender, lightly-built and very fast African dinosaur.
• Elemgasem Cretaceous · Carnivore · Argentina (South America)A medium abelisaur predator, named in 2022.
• Elmisaurus Cretaceous · Omnivore · Mongolia (Asia)A small beaked oviraptorosaur known mainly from its hands and feet.
• Elrhazosaurus Cretaceous · Herbivore · Niger (Africa)A small, fleet-footed plant-eater from the rivers of ancient Niger.
• Emausaurus Jurassic · Herbivore · Germany (Europe)An early armored plant-eater, an ancestor of the later stegosaurs and ankylosaurs.
• Emiliasaura Cretaceous · Herbivore · ArgentinaEmiliasaura is a plant-eating ornithischian dinosaur known from fossils found in Argentina. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Enigmacursor Jurassic · Herbivore · The United StatesEnigmacursor is a plant-eating ornithischian dinosaur known from fossils found in the United States. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Enigmosaurus Cretaceous · Herbivore · Mongolia (Asia)A plant-eating therizinosaur known from a strangely shaped hip.
• Eoabelisaurus Jurassic · Carnivore · Argentina (South America)The oldest known abelisaur, already with the group's short, deep face.
• Eocarcharia Cretaceous · Carnivore · Niger (Africa)A shark-toothed African predator with a thick, bony brow.
• Eocursor Triassic · Herbivore · South AfricaOne of the earliest and most complete bird-hipped dinosaurs.
• Eodromaeus Triassic · Carnivore · Argentina (South America)One of the earliest dinosaurs, a tiny, fleet-footed predator.
• Eolambia Cretaceous · Herbivore · USA (Utah)An early North American relative of the duck-billed dinosaurs.
• Eomamenchisaurus Jurassic · Herbivore · China (Asia)An early long-necked relative of the famously long-necked Mamenchisaurus.
• Eoneophron Cretaceous · Omnivore · The United StatesEoneophron is a beaked, feathered dinosaur known from fossils found in the United States. It is classified within Theropoda · Caenagnathidae. Its full size, appearance and biology are not yet widely documented.
• Eoraptor Triassic · Carnivore · Argentina (South America)A small, lightly-built early dinosaur, one of the most primitive ever found (likely an omnivore).
• Eosinopteryx Jurassic · Carnivore · China (Asia)A tiny feathered dinosaur that probably could not fly.
• Eotrachodon Cretaceous · Herbivore · USA (Alabama)A primitive duck-bill from the US Gulf Coast.
• Eotriceratops Cretaceous · Herbivore · Canada (Alberta)A giant early relative of Triceratops with a huge horned skull.
• Eotyrannus Cretaceous · Carnivore · England (Isle of Wight)An early, lightly-built tyrannosaur with long arms, from the Isle of Wight.
• Eousdryosaurus Jurassic · Herbivore · Portugal (Europe)A small, swift plant-eater from the Jurassic of Portugal.
• Epachthosaurus Cretaceous · Herbivore · Argentina (South America)A heavily-built titanosaur known from an unusually complete skeleton.
• Epichirostenotes Cretaceous · Omnivore · Canada (Alberta)A beaked, bird-like oviraptorosaur from Alberta.
• Epidendrosaurus Jurassic · Omnivore · ChinaEpidendrosaurus is a predatory theropod dinosaur known from fossils found in China. It is classified within Theropoda · Scansoriopterygidae. Its full size, appearance and biology are not yet widely documented.
• Epidexipteryx Jurassic · Carnivore · China (Asia)A tiny dinosaur with four long, ribbon-like display feathers on its tail.
• Equijubus Cretaceous · Herbivore · China (Asia)An early duck-bill relative known from a well-preserved skull.
• Erectopus Cretaceous · Carnivore · France (Europe)A medium predator from the early Cretaceous of France.
• Erketu Cretaceous · Herbivore · Mongolia (Asia)A titanosaur with one of the proportionally longest necks of any known dinosaur.
• Erliansaurus Cretaceous · Herbivore · China (Asia)A clawed plant-eater from the Erlian Basin of Inner Mongolia.
• Erlikosaurus Cretaceous · Herbivore · Mongolia (Asia)A beaked, pot-bellied therizinosaur with long claws and a small, delicate skull.
• Erythrovenator Triassic · Carnivore · BrazilErythrovenator is a predatory theropod dinosaur known from fossils found in Brazil. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Eshanosaurus Jurassic · Herbivore · China (Asia)A jawbone that may belong to the oldest known therizinosaur.
• Eucnemesaurus Triassic · Herbivore · South AfricaA large, sturdy-legged early plant-eater from Triassic South Africa.
• Eucoelophysis Triassic · Omnivore · The United StatesEucoelophysis is a early dinosaur relative known from fossils found in the United States. It is classified within Dinosauriformes · Silesauridae. Its full size, appearance and biology are not yet widely documented.
• Euhelopus Cretaceous · Herbivore · China (Asia)One of the first dinosaurs ever scientifically described from China.
• Euoplocephalus Cretaceous · Herbivore · Canada (North America)A heavily-armoured tank with a club tail and even bony, protected eyelids.
• Europasaurus Jurassic · Herbivore · Germany (Europe)A dwarf sauropod that shrank to survive on a small prehistoric island.
• Europatitan Cretaceous · Herbivore · Spain (Europe)A giant long-necked sauropod from early Cretaceous Spain.
• Europelta Cretaceous · Herbivore · Spain (Europe)The most complete armoured dinosaur known from Europe.
• Eustreptospondylus Jurassic · Carnivore · England (Europe)A mid-sized Jurassic predator from England that may have scavenged ancient coasts.

F

• Falcarius Cretaceous · Herbivore · USA (Utah)A primitive therizinosaur showing these plant-eaters evolved from meat-eating ancestors.
• Ferenceratops Cretaceous · Herbivore · RomaniaFerenceratops is a plant-eating ornithischian dinosaur known from fossils found in Romania. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Ferganasaurus Jurassic · Herbivore · Kyrgyzstan (Asia)A mid-sized sauropod and the first dinosaur named from Kyrgyzstan.
• Ferganocephale Jurassic · Herbivore · KyrgyzstanFerganocephale is a plant-eating ornithischian dinosaur known from fossils found in Kyrgyzstan. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Ferrisaurus Cretaceous · Herbivore · Canada (British Columbia)A small frilled plant-eater, the first dinosaur named from British Columbia.
• Fona Cretaceous · Herbivore · The United StatesFona is a dinosaur known from fossils found in the United States. It is classified within Ornithopoda · Thescelosauridae. Its full size, appearance and biology are not yet widely documented.
• Foraminacephale Cretaceous · Herbivore · Canada (Alberta)A small dome-headed dinosaur with tiny pits across its skull.
• Fosterovenator Jurassic · Carnivore · The United StatesFosterovenator is a predatory theropod dinosaur known from fossils found in the United States. It is classified within Theropoda · Ceratosauridae. Its full size, appearance and biology are not yet widely documented.
• Fostoria Cretaceous · Herbivore · AustraliaAn Australian plant-eater known from several opalised skeletons found together.
• Fruitadens Jurassic · Omnivore · USA (Colorado)One of the smallest known plant-eating dinosaurs, the size of a rabbit.
• Fujianvenator Jurassic · Carnivore · China (Asia)A strange bird-like dinosaur with very long lower legs, named in 2023.
• Fukuipteryx Cretaceous · Omnivore · Japan (Asia)A primitive bird from Japan with a stubby tail bone.
• Fukuiraptor Cretaceous · Carnivore · Japan (Asia)A medium predator and one of Japan's best-known meat-eating dinosaurs.
• Fukuisaurus Cretaceous · Herbivore · Japan (Asia)An iguanodont plant-eater from Japan's dinosaur-rich Fukui region.
• Fukuititan Cretaceous · Herbivore · Japan (Asia)The first long-necked sauropod to be named from Japan.
• Fukuivenator Cretaceous · Carnivore · Japan (Asia)A strange Japanese theropod with a mix of meat- and plant-eating features.
• Fulgurotherium Cretaceous · Herbivore · AustraliaA small plant-eater from Lightning Ridge, known from opalised bones.
• Furcatoceratops Cretaceous · Herbivore · USA (Montana)A horned dinosaur from the Judith River rocks of Montana.
• Fushanosaurus Jurassic · Herbivore · ChinaFushanosaurus is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Fusuisaurus Cretaceous · Herbivore · ChinaFusuisaurus is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Futalognkosaurus Cretaceous · Herbivore · Argentina (South America)A colossal titanosaur known from an unusually complete giant skeleton.
• Fylax Cretaceous · Herbivore · SpainFylax is a plant-eating ornithischian dinosaur known from fossils found in Spain. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.

G

• Galeamopus Jurassic · Herbivore · USA (Wyoming)A long, whip-tailed cousin of Diplodocus with a low, horse-like head.
• Galleonosaurus Cretaceous · Herbivore · AustraliaA small plant-eater from the ancient rift valley between Australia and Antarctica.
• Gallimimus Cretaceous · Herbivore · Mongolia (Asia)An ostrich-like dinosaur built for speed, with long legs, a long neck and a toothless beak (likely an omnivore).
• Galvesaurus Jurassic · Herbivore · Spain (Europe)A long-necked sauropod from the Jurassic of eastern Spain.
• Gamatavus Triassic · Omnivore · BrazilGamatavus is a early dinosaur relative known from fossils found in Brazil. It is classified within Dinosauriformes · Silesauridae. Its full size, appearance and biology are not yet widely documented.
• Gandititan Cretaceous · Herbivore · ChinaGandititan is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Gannansaurus Cretaceous · Herbivore · China (Asia)A titanosaur from the dinosaur-rich Ganzhou region of China.
• Ganzhousaurus Cretaceous · Omnivore · China (Asia)A beaked oviraptorid from the dinosaur-rich rocks around Ganzhou.
• Gargoyleosaurus Jurassic · Herbivore · USA (Wyoming)One of the earliest and most complete armored dinosaurs known.
• Garrigatitan Cretaceous · Herbivore · France (Europe)A titanosaur from the late Cretaceous of southern France.
• Garudimimus Cretaceous · Herbivore · Mongolia (Asia)A primitive ostrich-dinosaur with a toothless beak (likely an omnivore).
• Garumbatitan Cretaceous · Herbivore · Spain (Europe)A giant sauropod from Spain that sheds light on titanosaur origins.
• Gasosaurus Jurassic · Carnivore · China (Asia)A medium-sized predator from the rich Dashanpu fossil beds.
• Gasparinisaura Cretaceous · Herbivore · Argentina (South America)A small, speedy two-legged plant-eater, one of the first small ornithopods from South America.
• Gastonia Cretaceous · Herbivore · USA (North America)A spiky armoured dinosaur bristling with flattened, blade-like spikes.
• Geminiraptor Cretaceous · Carnivore · USA (Utah)An early North American troodontid with hollow, air-filled jaw bones.
• Genusaurus Cretaceous · Carnivore · France (Europe)An early ceratosaur predator from France.
• Genyodectes Cretaceous · Carnivore · Argentina (South America)A ceratosaur known mainly from a fearsome set of jaws crammed with teeth.
• Gideonmantellia Cretaceous · Herbivore · SpainGideonmantellia is a dinosaur known from fossils found in Spain. It is classified within Ornithopoda · Hypsilophodontidae. Its full size, appearance and biology are not yet widely documented.
• Giganotosaurus Cretaceous · Carnivore · Argentina (South America)One of the largest meat-eating dinosaurs, even longer than T. rex, with a long narrow skull and blade-like slicing teeth.
• Gigantoraptor Cretaceous · Herbivore · Mongolia (Asia)A giant feathered, beaked dinosaur a colossal cousin of Oviraptor.
• Gigantspinosaurus Jurassic · Herbivore · China (Asia)A Chinese stegosaur famous for the enormous spikes jutting from its shoulders.
• Gilmoreosaurus Cretaceous · Herbivore · China (Asia)An early duck-bill relative from the Gobi region.
• Giraffatitan Jurassic · Herbivore · Tanzania (Africa)An African brachiosaur, long thought to be a species of Brachiosaurus.
• Glacialisaurus Jurassic · Herbivore · AntarcticaA large early plant-eater from a then-temperate Antarctica.
• Glishades Cretaceous · Herbivore · USA (Montana)A duck-bill relative known from a partial pair of beak bones.
• Glyptodontopelta Cretaceous · Herbivore · USA (New Mexico)An armored nodosaur whose skin armor recalls that of a glyptodont.
• Gnathovorax Triassic · Carnivore · Brazil (South America)One of the oldest and best-preserved predatory dinosaurs.
• Gobiceratops Cretaceous · Herbivore · Mongolia (Asia)A tiny frilled dinosaur known from a small parrot-beaked skull.
• Gobihadros Cretaceous · Herbivore · Mongolia (Asia)An early duck-bill relative known from complete skeletons.
• Gobiraptor Cretaceous · Omnivore · Mongolia (Asia)A beaked oviraptorid with thick, crushing jaws.
• Gobisaurus Cretaceous · Herbivore · China (Asia)A large armoured dinosaur from the Gobi Desert, without a tail club.
• Gobititan Cretaceous · Herbivore · China (Asia)A long-necked sauropod known from a long string of tail bones.
• Gobivenator Cretaceous · Carnivore · Mongolia (Asia)A small, bird-like predator known from a beautifully complete skull and skeleton.
• Gojirasaurus Triassic · Carnivore · USA (New Mexico)One of the largest predators of the late Triassic.
• Gondwanatitan Cretaceous · Herbivore · Brazil (South America)A slender titanosaur from late Cretaceous Brazil.
• Gongbusaurus Jurassic · Herbivore · China (Asia)A small bird-hipped plant-eater known from teeth and partial bones.
• Gongpoquansaurus Cretaceous · Herbivore · ChinaGongpoquansaurus is a plant-eating ornithischian dinosaur known from fossils found in China. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Gongshuilong Cretaceous · Herbivore · ChinaGongshuilong is a duck-billed plant-eating dinosaur known from fossils found in China. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Gongxianosaurus Jurassic · Herbivore · China (Asia)One of the earliest true long-necked sauropods.
• Gonkoken Cretaceous · Herbivore · Chile (South America)A graceful duck-bill ancestor from the far south of Chilean Patagonia.
• Gorgosaurus Cretaceous · Carnivore · Canada (North America)A sleek tyrannosaur, a close relative of Albertosaurus that hunted across Canada.
• Goyocephale Cretaceous · Herbivore · Mongolia (Asia)A flat-headed bone-head dinosaur with a spiky-edged skull.
• Graciliceratops Cretaceous · Herbivore · Mongolia (Asia)A tiny, slender frilled dinosaur, a small cousin of Protoceratops.
• Graciliraptor Cretaceous · Carnivore · China (Asia)A small, slender raptor and an early relative of the four-winged Microraptor.
• Gravitholus Cretaceous · Herbivore · Canada (Alberta)A dome-headed dinosaur with an especially thick, wide skull cap.
• Gremlin Cretaceous · Herbivore · The United StatesGremlin is a horned, frilled plant-eater known from fossils found in the United States. It is classified within Ceratopsia · Leptoceratopsidae. Its full size, appearance and biology are not yet widely documented.
• Gresslyosaurus Triassic · Herbivore · SwitzerlandGresslyosaurus is a long-necked plant-eating sauropod known from fossils found in Switzerland. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Gryphoceratops Cretaceous · Herbivore · Canada (Alberta)The smallest known adult horned dinosaur in North America.
• Gryposaurus Cretaceous · Herbivore · USA & CanadaA duck-billed dinosaur with a distinctive arched, Roman-nosed snout.
• Gspsaurus Cretaceous · Herbivore · PakistanGspsaurus is a long-necked plant-eating sauropod known from fossils found in Pakistan. It is classified within Sauropoda · Titanosauria. Its full size, appearance and biology are not yet widely documented.
• Guaibasaurus Triassic · Herbivore · BrazilGuaibasaurus is a long-necked plant-eating sauropod known from fossils found in Brazil. It is classified within Sauropodomorpha · Guaibasauridae. Its full size, appearance and biology are not yet widely documented.
• Gualicho Cretaceous · Carnivore · Argentina (South America)A medium predator that, like T. rex, had tiny two-fingered arms evolved separately.
• Guanlong Jurassic · Carnivore · China (Asia)An early, small tyrannosaur with a delicate crest on top of its head.
• Guemesia Cretaceous · Carnivore · Argentina (South America)A short-faced abelisaur from northwestern Argentina, named in 2022.
• Gyposaurus Jurassic · Herbivore · ChinaGyposaurus is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropodomorpha · Anchisauridae. Its full size, appearance and biology are not yet widely documented.

H

• Hadrosaurus Cretaceous · Herbivore · USA (New Jersey)A duck-billed dinosaur from New Jersey that made scientific history.
• Haestasaurus Cretaceous · Herbivore · United KingdomA sauropod that preserved a rare patch of pebbly skin.
• Hagryphus Cretaceous · Omnivore · USA (Utah)A large beaked oviraptorosaur from southern Utah.
• Halszkaraptor Cretaceous · Carnivore · Mongolia (Asia)A bizarre, duck-necked raptor that may have hunted fish like a tiny dinosaur-grebe.
• Halticosaurus Triassic · Carnivore · Germany (Europe)A slender, fast-running predator from the late Triassic of Germany.
• Hamititan Cretaceous · Herbivore · ChinaHamititan is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Hanssuesia Cretaceous · Herbivore · USA (Montana)A dome-headed dinosaur with a broad, low skull.
• Haolong Cretaceous · Herbivore · ChinaHaolong is a plant-eating ornithischian dinosaur known from fossils found in China. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Haplocanthosaurus Jurassic · Herbivore · USA (Colorado)A primitive sauropod from the famous Jurassic Morrison Formation.
• Haplocheirus Jurassic · Carnivore · China (Asia)An early member of the one-clawed alvarezsaur group, before they shrank.
• Harenadraco Cretaceous · Carnivore · MongoliaHarenadraco is a predatory theropod dinosaur known from fossils found in Mongolia. It is classified within Theropoda · Troodontidae. Its full size, appearance and biology are not yet widely documented.
• Harpymimus Cretaceous · Herbivore · Mongolia (Asia)An early ostrich-dinosaur that still had a few small teeth in its lower jaw.
• Haya Cretaceous · Herbivore · Mongolia (Asia)A small plant-eater from the Gobi Desert, known from several skeletons.
• Helioceratops Cretaceous · Herbivore · China (Asia)A small, early two-legged horned dinosaur with a deep lower jaw.
• Herrerasaurus Triassic · Carnivore · Argentina (South America)One of the oldest known dinosaurs, a lightweight predator from the very dawn of the dinosaur age.
• Hesperonychus Cretaceous · Carnivore · Canada (Alberta)One of the smallest known North American meat-eaters, a cat-sized raptor.
• Hesperonyx Jurassic · Herbivore · PortugalHesperonyx is a plant-eating ornithischian dinosaur known from fossils found in Portugal. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Hesperornithoides Jurassic · Carnivore · USA (Wyoming)A tiny feathered predator nicknamed 'Lori', from Jurassic Wyoming.
• Hesperosaurus Jurassic · Herbivore · USA (Wyoming)An American stegosaur with broad, low plates, known from a skin-preserving fossil.
• Heterodontosaurus Jurassic · Herbivore · South AfricaA tiny early plant-eater with three different kinds of teeth, including little fangs.
• Hexing Cretaceous · Omnivore · China (Asia)A small, primitive ostrich-dinosaur from northeastern China.
• Hexinlusaurus Jurassic · Herbivore · China (Asia)A small, fast plant-eater from the Sichuan Basin of China.
• Heyuannia Cretaceous · Carnivore · China (Asia)A small, crestless oviraptorid known from many fossils, including eggs.
• Himalayadrinda Jurassic · Carnivore · PakistanHimalayadrinda is a predatory theropod dinosaur known from fossils found in Pakistan. It is classified within Theropoda · Noasauridae. Its full size, appearance and biology are not yet widely documented.
• Hippodraco Cretaceous · Herbivore · USA (Utah)A medium plant-eater with a long, horse-like skull.
• Histriasaurus Cretaceous · Herbivore · Croatia (Europe)The first dinosaur named from Croatia, a comb-toothed sauropod.
• Homalocephale Cretaceous · Herbivore · Mongolia (Asia)A bonehead dinosaur with a flat, thick, bumpy skull instead of a high dome.
• Hoplitosaurus Cretaceous · Herbivore · USA (South Dakota)A spiky-armored dinosaur from the early Cretaceous of South Dakota.
• Huabeisaurus Cretaceous · Herbivore · China (Asia)A giant long-necked sauropod from northern China.
• Huadanosaurus Cretaceous · Carnivore · ChinaHuadanosaurus is a predatory theropod dinosaur known from fossils found in China. It is classified within Theropoda · Compsognathidae. Its full size, appearance and biology are not yet widely documented.
• Hualianceratops Jurassic · Herbivore · China (Asia)A tiny, early two-legged ancestor of the horned dinosaurs.
• Huallasaurus Cretaceous · Herbivore · ArgentinaHuallasaurus is a duck-billed plant-eating dinosaur known from fossils found in Argentina. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Huanansaurus Cretaceous · Omnivore · China (Asia)A crested, beaked oviraptorid from southern China.
• Huanghetitan Cretaceous · Herbivore · China (Asia)A giant Chinese sauropod with enormously deep, wide ribs.
• Huangshanlong Jurassic · Herbivore · ChinaHuangshanlong is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Mamenchisauridae. Its full size, appearance and biology are not yet widely documented.
• Huashanosaurus Jurassic · Herbivore · ChinaHuashanosaurus is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Huaxiagnathus Cretaceous · Carnivore · China (Asia)A relatively large compsognathid predator with long grasping hands.
• Huaxiazhoulong Cretaceous · Herbivore · ChinaHuaxiazhoulong is a armoured plant-eating dinosaur known from fossils found in China. It is classified within Ankylosauria · Ankylosauridae. Its full size, appearance and biology are not yet widely documented.
• Huayangosaurus Jurassic · Herbivore · China (Asia)An early, primitive stegosaur with plates, spikes, and even small teeth at the front of its mouth.
• Huayracursor Triassic · Herbivore · ArgentinaHuayracursor is a long-necked plant-eating sauropod known from fossils found in Argentina. It is classified within Sauropodomorpha · basal. Its full size, appearance and biology are not yet widely documented.
• Hudiesaurus Jurassic · Herbivore · China (Asia)A giant long-necked sauropod from the deserts of western China.
• Huehuecanauhtlus Cretaceous · Herbivore · Mexico (North America)An early duck-bill relative from western Mexico.
• Huinculsaurus Cretaceous · Carnivore · ArgentinaHuinculsaurus is a predatory theropod dinosaur known from fossils found in Argentina. It is classified within Theropoda · Noasauridae. Its full size, appearance and biology are not yet widely documented.
• Hulsanpes Cretaceous · Carnivore · Mongolia (Asia)A tiny raptor known mainly from a delicate foot.
• Hungarosaurus Cretaceous · Herbivore · Hungary (Europe)The best-known armoured dinosaur from central Europe.
• Huxleysaurus Cretaceous · Herbivore · United KingdomAn iguanodont named after the great scientist Thomas Huxley.
• Hylaeosaurus Cretaceous · Herbivore · England (Europe)An early armoured dinosaur and one of the first three creatures ever called 'dinosaurs'.
• Hypacrosaurus Cretaceous · Herbivore · USA & CanadaA hollow-crested duck-bill known from nests, eggs, and tiny embryos.
• Hypnovenator Cretaceous · Carnivore · JapanHypnovenator is a predatory theropod dinosaur known from fossils found in Japan. It is classified within Theropoda · Troodontidae. Its full size, appearance and biology are not yet widely documented.
• Hypselosaurus Cretaceous · Herbivore · France (Europe)A titanosaur from southern France linked to some famous fossil eggs.
• Hypselospinus Cretaceous · Herbivore · United KingdomAn iguanodont with tall spines along its back, from southern England.
• Hypsilophodon Cretaceous · Herbivore · England (Europe)A small, speedy, two-legged plant-eater built for quick escapes.

I

• Iani Cretaceous · Herbivore · USA (Utah)A small plant-eater from a time of great change, named in 2023.
• Iberospinus Cretaceous · Carnivore · Portugal (Europe)A crocodile-snouted, fish-eating spinosaur from Portugal.
• Ibirania Cretaceous · Herbivore · Brazil (South America)A dwarf titanosaur, one of the smallest sauropods ever found.
• Ichthyovenator Cretaceous · Carnivore · Laos (Asia)A fish-eating spinosaur with an unusual sail split into two separate humps.
• Igai Cretaceous · Herbivore · Egypt (Africa)A titanosaur from the Cretaceous deserts of Egypt, named in 2023.
• Ignavusaurus Jurassic · Herbivore · Lesotho (Africa)A small early plant-eater known from a young individual found in Lesotho.
• Iguanacolossus Cretaceous · Herbivore · USA (Utah)A large iguanodont plant-eater from early Cretaceous Utah.
• Iguanodon Cretaceous · Herbivore · England & Belgium (Europe)A large plant-eater with a spiked thumb, and one of the very first dinosaurs ever scientifically named.
• Ikqaumishan Cretaceous · Herbivore · PakistanIkqaumishan is a long-necked plant-eating sauropod known from fossils found in Pakistan. It is classified within Sauropoda · Titanosauria. Its full size, appearance and biology are not yet widely documented.
• Ilokelesia Cretaceous · Carnivore · Argentina (South America)A primitive short-faced abelisaur predator from Patagonia.
• Imperobator Cretaceous · Carnivore · AntarcticaA large bird-like predator from the tip of Antarctica.
• Imrankhanhero Cretaceous · Herbivore · PakistanImrankhanhero is a long-necked plant-eating sauropod known from fossils found in Pakistan. It is classified within Sauropoda · Titanosauria. Its full size, appearance and biology are not yet widely documented.
• Inawentu Cretaceous · Herbivore · Argentina (South America)A titanosaur with a squared-off snout for cropping low plants, named in 2024.
• Incisivosaurus Cretaceous · Herbivore · China (Asia)A buck-toothed, feathered dinosaur with prominent front teeth like a rodent.
• Indosaurus Cretaceous · Carnivore · India (Asia)A horned-browed predator from late Cretaceous India.
• Indosuchus Cretaceous · Carnivore · India (Asia)One of the first predatory dinosaurs named from India.
• Ingenia Cretaceous · Omnivore · MongoliaIngenia is a beaked, feathered dinosaur known from fossils found in Mongolia. It is classified within Theropoda · Oviraptoridae. Its full size, appearance and biology are not yet widely documented.
• Ingentia Triassic · Herbivore · Argentina (South America)One of the first truly giant dinosaurs, far earlier than the sauropods.
• Invictarx Cretaceous · Herbivore · USA (New Mexico)A heavily armored nodosaur from late Cretaceous New Mexico.
• Irisosaurus Jurassic · Herbivore · ChinaIrisosaurus is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropodomorpha · Massospondylidae. Its full size, appearance and biology are not yet widely documented.
• Irritator Cretaceous · Carnivore · Brazil (South America)A fish-eating spinosaur from Brazil with a long, slender, crocodile-like snout.
• Isaberrysaura Jurassic · Herbivore · Argentina (South America)An early bird-hipped plant-eater that preserved seeds in its gut.
• Isanosaurus Triassic · Herbivore · Thailand (Asia)One of the earliest true sauropods, from the Late Triassic of Thailand.
• Isasicursor Cretaceous · Herbivore · ArgentinaIsasicursor is a plant-eating ornithischian dinosaur known from fossils found in Argentina. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Ischioceratops Cretaceous · Herbivore · China (Asia)A small frilled dinosaur with an oddly shaped hip bone.
• Isisaurus Cretaceous · Herbivore · India (Asia)A large titanosaur with an unusually long, horizontally-held neck.
• Issi saaneq Triassic · Herbivore · GreenlandAn early long-necked plant-eater, the first dinosaur named from Greenland.
• Istiorachis Cretaceous · Herbivore · The United KingdomIstiorachis is a plant-eating ornithischian dinosaur known from fossils found in the United Kingdom. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Itapeuasaurus Cretaceous · Herbivore · Brazil (South America)A comb-toothed sauropod from northeastern Brazil, named in 2019.
• Itemirus Cretaceous · Carnivore · Uzbekistan (Asia)A small Central Asian predator known mainly from a braincase.
• Iyuku Cretaceous · Herbivore · South AfricaIyuku is a plant-eating ornithischian dinosaur known from fossils found in South Africa. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.

J

• Jaculinykus Cretaceous · Carnivore · Mongolia (Asia)A tiny insect-eating alvarezsaur preserved curled in a bird-like sleeping pose.
• Jainosaurus Cretaceous · Herbivore · India (Asia)A giant titanosaur from the late Cretaceous of central India.
• Jakapil Cretaceous · Herbivore · Argentina (South America)A small, two-legged armored dinosaur with a leaf-shaped beak, named in 2022.
• Jaklapallisaurus Triassic · Herbivore · India (Asia)A small early plant-eater from the late Triassic of southern India.
• Janenschia Jurassic · Herbivore · Tanzania (Africa)A large African sauropod from the famous Tendaguru fossil beds.
• Jaxartosaurus Cretaceous · Herbivore · Kazakhstan (Asia)A crested duck-bill from Kazakhstan, named after an ancient river.
• Jeholornis Cretaceous · Herbivore · China (Asia)An early bird with a long, reptile-like bony tail and seed-eating habits.
• Jeholosaurus Cretaceous · Herbivore · China (Asia)A small plant-eater from the famous Jehol fossil beds.
• Jeyawati Cretaceous · Herbivore · USA (New Mexico)A duck-bill relative from New Mexico with grinding teeth.
• Jianchangosaurus Cretaceous · Herbivore · China (Asia)An early, lightly-built therizinosaur with leaf-shaped teeth for eating plants.
• Jiangjunosaurus Jurassic · Herbivore · China (Asia)A Chinese stegosaur with broad, rounded back plates.
• Jiangshanosaurus Cretaceous · Herbivore · China (Asia)An early titanosaur from eastern China.
• Jiangxisaurus Cretaceous · Carnivore · China (Asia)A beaked, feathered oviraptorid with slender, flexible jaws.
• Jiangxititan Cretaceous · Herbivore · China (Asia)A long-necked titanosaur from the Ganzhou region of China, named in 2023.
• Jianianhualong Cretaceous · Carnivore · China (Asia)A feathered troodontid with lopsided tail feathers like those of flying birds.
• Jinbeisaurus Cretaceous · Carnivore · China (Asia)A tyrannosaur relative from the Shanxi province of China.
• Jinchuanloong Jurassic · Herbivore · ChinaJinchuanloong is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Jinfengopteryx Cretaceous · Carnivore · China (Asia)A small feathered troodontid once mistaken for an early bird.
• Jingiella Jurassic · Herbivore · ChinaJingiella is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Mamenchisauridae. Its full size, appearance and biology are not yet widely documented.
• Jingshanosaurus Jurassic · Herbivore · China (Asia)A large early plant-eater known from a beautifully complete skeleton.
• Jintasaurus Cretaceous · Herbivore · China (Asia)An early duck-bill relative from Gansu, China.
• Jinyunpelta Cretaceous · Herbivore · China (Asia)One of the oldest armored dinosaurs to have a full tail club.
• Jinzhousaurus Cretaceous · Herbivore · China (Asia)A Chinese iguanodontian known from a complete, flattened skeleton.
• Jiutaisaurus Cretaceous · Herbivore · China (Asia)A long-necked sauropod from Jilin province, China.
• Joaquinraptor Cretaceous · Carnivore · ArgentinaJoaquinraptor is a predatory theropod dinosaur known from fossils found in Argentina. It is classified within Theropoda · Megaraptoridae. Its full size, appearance and biology are not yet widely documented.
• Jobaria Jurassic · Herbivore · Niger (Africa)A primitive, sturdy sauropod from the Sahara with simple spoon-shaped teeth.
• Judiceratops Cretaceous · Herbivore · USA (Montana)One of the oldest known members of the Triceratops branch of horned dinosaurs.
• Juratyrant Jurassic · Carnivore · United KingdomAn early tyrannosaur relative from Jurassic England.
• Juravenator Jurassic · Carnivore · Germany (Europe)A tiny predator preserved with both scales and traces of feathers.

K

• Kaatedocus Jurassic · Herbivore · USA (Wyoming)A slender, long-necked diplodocid known from a well-preserved skull and neck.
• Kaijiangosaurus Jurassic · Carnivore · China (Asia)A medium predator from the Middle Jurassic of Sichuan, China.
• Kaijutitan Cretaceous · Herbivore · ArgentinaKaijutitan is a long-necked plant-eating sauropod known from fossils found in Argentina. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Kakuru Cretaceous · Carnivore · AustraliaA slender predator known from a leg bone turned into shimmering opal.
• Kamuysaurus Cretaceous · Herbivore · Japan (Asia)A nearly complete duck-billed dinosaur from Japan, nicknamed 'Mukawaryu'.
• Kangnasaurus Cretaceous · Herbivore · South AfricaA small, fast plant-eater from early Cretaceous South Africa.
• Kank Cretaceous · Carnivore · ArgentinaKank is a predatory theropod dinosaur known from fossils found in Argentina. It is classified within Theropoda · Unenlagiidae. Its full size, appearance and biology are not yet widely documented.
• Kansaignathus Cretaceous · Carnivore · TajikistanKansaignathus is a predatory theropod dinosaur known from fossils found in Tajikistan. It is classified within Theropoda · Dromaeosauridae. Its full size, appearance and biology are not yet widely documented.
• Karongasaurus Cretaceous · Herbivore · Malawi (Africa)A long-necked titanosaur with slender, pencil-like teeth.
• Katepensaurus Cretaceous · Herbivore · Argentina (South America)A comb-toothed sauropod with air-filled, lightweight backbones.
• Kayentavenator Jurassic · Carnivore · The United StatesKayentavenator is a predatory theropod dinosaur known from fossils found in the United States. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Kazaklambia Cretaceous · Herbivore · Kazakhstan (Asia)An early crested duck-bill relative from Kazakhstan.
• Kelmayisaurus Cretaceous · Carnivore · China (Asia)A large predator from the Junggar Basin of northwestern China.
• Kelumapusaura Cretaceous · Herbivore · ArgentinaKelumapusaura is a duck-billed plant-eating dinosaur known from fossils found in Argentina. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Kentrosaurus Jurassic · Herbivore · Tanzania (Africa)An African cousin of Stegosaurus with plates on its shoulders and long, sharp spikes down its back and tail.
• Kerberosaurus Cretaceous · Herbivore · RussiaKerberosaurus is a duck-billed plant-eating dinosaur known from fossils found in Russia. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Khaan Cretaceous · Carnivore · Mongolia (Asia)A small, parrot-beaked, feathered oviraptorid (likely an omnivore).
• Khanazeem Cretaceous · Herbivore · PakistanKhanazeem is a long-necked plant-eating sauropod known from fossils found in Pakistan. It is classified within Sauropoda · Titanosauria. Its full size, appearance and biology are not yet widely documented.
• Khankhuuluu Cretaceous · Carnivore · MongoliaKhankhuuluu is a predatory theropod dinosaur known from fossils found in Mongolia. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Khetranisaurus Cretaceous · Herbivore · Pakistan (Asia)A poorly-known titanosaur from Balochistan, named after the Khetran people; widely treated as doubtful.
• Kholumolumo Triassic · Herbivore · LesothoKholumolumo is a long-necked plant-eating sauropod known from fossils found in Lesotho. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Khulsanurus Cretaceous · Carnivore · Mongolia (Asia)A tiny, one-fingered insect-eater from the Gobi Desert, named in 2021.
• Kileskus Jurassic · Carnivore · Russia (Siberia)One of the oldest known tyrannosaur relatives, with a crested snout.
• Kinnareemimus Cretaceous · Omnivore · Thailand (Asia)An early ostrich-dinosaur from Thailand.
• Kiyacursor Cretaceous · Carnivore · RussiaKiyacursor is a predatory theropod dinosaur known from fossils found in Russia. It is classified within Theropoda · Noasauridae. Its full size, appearance and biology are not yet widely documented.
• Klamelisaurus Jurassic · Herbivore · China (Asia)A long-necked sauropod from the Gobi region of China.
• Kol Cretaceous · Carnivore · Mongolia (Asia)An insect-eating alvarezsaur known from a single well-preserved foot.
• Koleken Cretaceous · Carnivore · Argentina (South America)A horned-faced predator and smaller relative of Carnotaurus, named in 2024.
• Komlosaurus Jurassic · Herbivore · HungaryKomlosaurus is a plant-eating ornithischian dinosaur known from fossils found in Hungary. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Kookne Cretaceous · Carnivore · ArgentinaKookne is a predatory theropod dinosaur known from fossils found in Argentina. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Koreaceratops Cretaceous · Herbivore · South Korea (Asia)A small horned dinosaur with a tall, paddle-like tail that may have helped it swim.
• Koreanosaurus Cretaceous · Herbivore · South Korea (Asia)A stocky little plant-eater that may have dug burrows.
• Koshisaurus Cretaceous · Herbivore · Japan (Asia)An early duck-bill relative from the dinosaur-rich Fukui region of Japan.
• Kosmoceratops Cretaceous · Herbivore · USA (Utah)A horned dinosaur with possibly the most ornate skull of any, sporting around 15 horns.
• Kotasaurus Jurassic · Herbivore · India (Asia)An early sauropod found alongside Barapasaurus in central India.
• Kritosaurus Cretaceous · Herbivore · USA (New Mexico)A duck-billed dinosaur with an arched, Roman-nosed snout.
• Kryptohadros Cretaceous · Herbivore · RomaniaKryptohadros is a duck-billed plant-eating dinosaur known from fossils found in Romania. It is classified within Ornithopoda · Hadrosauroidea. Its full size, appearance and biology are not yet widely documented.
• Kryptops Cretaceous · Carnivore · Niger (Africa)A short-faced predator from the rivers of ancient Niger.
• Krzyzanowskisaurus Triassic · Herbivore · The United StatesKrzyzanowskisaurus is a plant-eating ornithischian dinosaur known from fossils found in the United States. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Kukufeldia Cretaceous · Herbivore · United KingdomAn iguanodont known from a lower jaw from southern England.
• Kulceratops Cretaceous · Herbivore · Uzbekistan (Asia)One of the oldest known horned dinosaurs, from Central Asia.
• Kulindadromeus Jurassic · Herbivore · Russia (Siberia)A small plant-eater that surprised scientists by being covered in fuzzy feathers.
• Kunbarrasaurus Cretaceous · Herbivore · AustraliaA small Australian armoured dinosaur known from a beautifully complete skeleton.
• Kuru Cretaceous · Carnivore · Mongolia (Asia)A sickle-clawed raptor from the Gobi Desert.
• Kurupi Cretaceous · Carnivore · Brazil (South America)A short-faced abelisaur predator from late Cretaceous Brazil.
• Kwanasaurus Triassic · Omnivore · The United StatesKwanasaurus is a early dinosaur relative known from fossils found in the United States. It is classified within Dinosauriformes · Silesauridae. Its full size, appearance and biology are not yet widely documented.

L

• Labocania Cretaceous · Carnivore · Mexico (North America)A heavily-built predator and one of the few dinosaurs known from Mexico.
• Laevisuchus Cretaceous · Carnivore · India (Asia)A small, lightly built relative of India's bigger abelisaur predators.
• Laiyangosaurus Cretaceous · Herbivore · ChinaLaiyangosaurus is a duck-billed plant-eating dinosaur known from fossils found in China. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Lajasvenator Cretaceous · Carnivore · Argentina (South America)A small early relative of the giant shark-toothed predators.
• Lamaceratops Cretaceous · Herbivore · Mongolia (Asia)A small, parrot-beaked relative of Protoceratops.
• Lambeosaurus Cretaceous · Herbivore · Canada (North America)A duck-billed dinosaur with a hollow, hatchet-shaped crest on its head.
• Lametasaurus Cretaceous · Carnivore · IndiaLametasaurus is a predatory theropod dinosaur known from fossils found in India. It is classified within Theropoda · Abelisauridae. Its full size, appearance and biology are not yet widely documented.
• Lamplughsaura Jurassic · Herbivore · India (Asia)A large early plant-eater near the origin of the giant sauropods.
• Lanzhousaurus Cretaceous · Herbivore · China (Asia)A large plant-eater with the biggest teeth of any known plant-eating dinosaur.
• Lapampasaurus Cretaceous · Herbivore · Argentina (South America)A duck-billed dinosaur from the La Pampa province of Argentina.
• Laplatasaurus Cretaceous · Herbivore · Argentina (South America)A large titanosaur named after the La Plata region of Argentina.
• Lapparentosaurus Jurassic · Herbivore · Madagascar (Africa)A Jurassic sauropod from Madagascar, known from many young individuals.
• Laquintasaura Jurassic · Herbivore · Venezuela (South America)A small plant-eater that lived in groups right after a mass extinction.
• Latenivenatrix Cretaceous · Carnivore · Canada (Alberta)One of the largest troodontids, a big-brained, keen-eyed hunter.
• Latirhinus Cretaceous · Herbivore · Mexico (North America)A duck-billed dinosaur with an unusually broad, wide nose.
• Lavocatisaurus Cretaceous · Herbivore · Argentina (South America)A long-necked sauropod found as a family group of adults and young.
• Leaellynasaura Cretaceous · Herbivore · AustraliaA tiny polar dinosaur with large eyes for the dark, near-pole winters.
• Ledumahadi Jurassic · Herbivore · South AfricaA giant early plant-eater that walked on all fours before true sauropods evolved.
• Leinkupal Cretaceous · Herbivore · Argentina (South America)The youngest known member of the Diplodocus family, surviving into the Cretaceous.
• Leonerasaurus Jurassic · Herbivore · Argentina (South America)An early plant-eater near the very origin of the giant sauropods.
• Lepidocheirosaurus Jurassic · Carnivore · RussiaLepidocheirosaurus is a predatory theropod dinosaur known from fossils found in Russia. It is classified within Theropoda · Coelurosauria. Its full size, appearance and biology are not yet widely documented.
• Lepidus Triassic · Carnivore · USA (Texas)An early predator from the late Triassic of Texas.
• Leptoceratops Cretaceous · Herbivore · USA & CanadaA small, lightly-built horned dinosaur that could run on two legs.
• Leptorhynchos Cretaceous · Omnivore · USA (Texas)A small beaked oviraptorosaur from the late Cretaceous of Texas.
• Leshansaurus Jurassic · Carnivore · China (Asia)A large predator from the Sichuan Basin of China.
• Lesothosaurus Jurassic · Herbivore · Lesotho (Africa)A tiny, fast-running early plant-eater built for quick escapes.
• Lessemsaurus Triassic · Herbivore · Argentina (South America)A large early plant-eater near the dawn of the giant sauropods.
• Levnesovia Cretaceous · Herbivore · Uzbekistan (Asia)An early duck-bill relative from Central Asia.
• Lewisuchus Jurassic · Omnivore · ArgentinaLewisuchus is a early dinosaur relative known from fossils found in Argentina. It is classified within Dinosauriformes · Silesauridae. Its full size, appearance and biology are not yet widely documented.
• Lexovisaurus Jurassic · Herbivore · United KingdomAn early plated dinosaur from the Middle Jurassic of Europe.
• Leyesaurus Jurassic · Herbivore · Argentina (South America)A small early plant-eater from northwestern Argentina.
• Liaoceratops Cretaceous · Herbivore · China (Asia)A small, early horned dinosaur that helps show how the group began.
• Liaoningosaurus Cretaceous · Herbivore · China (Asia)A tiny armored dinosaur, one of the smallest ankylosaurs known.
• Liaoningotitan Cretaceous · Herbivore · ChinaLiaoningotitan is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Liaoningvenator Cretaceous · Carnivore · China (Asia)A small feathered troodontid from northeastern China.
• Ligabueino Cretaceous · Carnivore · ArgentinaLigabueino is a predatory theropod dinosaur known from fossils found in Argentina. It is classified within Theropoda · Noasauridae. Its full size, appearance and biology are not yet widely documented.
• Ligabuesaurus Cretaceous · Herbivore · Argentina (South America)A long-necked sauropod from early Cretaceous Patagonia.
• Liliensternus Triassic · Carnivore · Germany (Europe)One of the largest predators of the Late Triassic, a lightly-built early theropod.
• Limaysaurus Cretaceous · Herbivore · Argentina (South America)A long-necked sauropod with rows of slender, comb-like teeth.
• Limusaurus Jurassic · Herbivore · China (Asia)A beaked, plant-eating predator that lost all its teeth as it grew up.
• Lingwulong Jurassic · Herbivore · China (Asia)The oldest known diplodocoid sauropod, a cousin of Diplodocus.
• Lingyuanosaurus Cretaceous · Herbivore · China (Asia)A transitional plant-eating therizinosaur, named in 2019.
• Linhenykus Cretaceous · Carnivore · China (Asia)A tiny insect-eater and the only known dinosaur with just a single finger on each hand.
• Linheraptor Cretaceous · Carnivore · China (Asia)A sleek raptor known from one of the most complete dromaeosaur skeletons ever found.
• Linhevenator Cretaceous · Carnivore · ChinaLinhevenator is a predatory theropod dinosaur known from fossils found in China. It is classified within Theropoda · Troodontidae. Its full size, appearance and biology are not yet widely documented.
• Lirainosaurus Cretaceous · Herbivore · Spain (Europe)A small, slender titanosaur dwarfed by life on the European islands.
• Lishulong Jurassic · Herbivore · China (Asia)An early long-necked plant-eater from Yunnan, China, named in 2024.
• Litovoi Cretaceous · Herbivore · Romania (Europe)A dwarf titanosaur from the Romanian island of Haţeg.
• Liubangosaurus Cretaceous · Herbivore · China (Asia)A long-necked sauropod known from a row of backbones from southern China.
• Llukalkan Cretaceous · Carnivore · Argentina (South America)A short-faced abelisaur predator with an excellent sense of hearing.
• Lohuecotitan Cretaceous · Herbivore · Spain (Europe)An armored titanosaur from a rich fossil site in central Spain.
• Lokiceratops Cretaceous · Herbivore · USA (Montana)A horned dinosaur with huge, blade-like frill horns, named in 2024.
• Loncosaurus Cretaceous · Herbivore · Argentina (South America)A small plant-eater and one of the first dinosaurs named from Argentina.
• Lophorhothon Cretaceous · Herbivore · USA (Alabama)One of the first dinosaurs found in the southeastern United States.
• Lophostropheus Triassic · Carnivore · France (Europe)A predator that lived right across the great Triassic-Jurassic extinction.
• Loricatosaurus Jurassic · Herbivore · England (Europe)A European stegosaur with plates and tail spikes.
• Losillasaurus Jurassic · Herbivore · Spain (Europe)A giant sauropod from the Jurassic-Cretaceous boundary of Spain.
• Lourinhanosaurus Jurassic · Carnivore · Portugal (Europe)A Portuguese predator known from an adult plus a nest of over 100 eggs.
• Lourinhasaurus Jurassic · Herbivore · Portugal (Europe)A robust, big-bodied sauropod from Jurassic Portugal.
• Luanchuanraptor Cretaceous · Carnivore · China (Asia)A medium-sized raptor from central China.
• Lucianovenator Triassic · Carnivore · Argentina (South America)A slender early predator from the late Triassic of Argentina.
• Lufengosaurus Jurassic · Herbivore · China (Asia)An early long-necked plant-eater, one of the first dinosaurs mounted in China.
• Luoyanggia Cretaceous · Omnivore · China (Asia)A beaked oviraptorid from the Henan province of China.
• Lurdusaurus Cretaceous · Herbivore · Niger (Africa)An unusually heavy, hippo-shaped plant-eater from Africa.
• Lusotitan Jurassic · Herbivore · Portugal (Europe)A towering relative of Brachiosaurus from Jurassic Portugal.
• Lusovenator Jurassic · Carnivore · Portugal (Europe)The oldest known shark-toothed predator from Europe.
• Lutungutali Triassic · Omnivore · ZambiaLutungutali is a early dinosaur relative known from fossils found in Zambia. It is classified within Dinosauriformes · Silesauridae. Its full size, appearance and biology are not yet widely documented.
• Lycorhinus Jurassic · Herbivore · South AfricaA small plant-eater with fang-like teeth in the front of its jaws.
• Lythronax Cretaceous · Carnivore · USA (Utah)An early tyrannosaur with a short, wide skull and forward-facing eyes for good depth perception.

M

• Machairasaurus Cretaceous · Omnivore · Mongolia (Asia)A beaked oviraptorid with long, blade-like hand claws.
• Machairoceratops Cretaceous · Herbivore · USA (Utah)A horned dinosaur with two large, forward-curving spikes on its frill.
• Macrocollum Triassic · Herbivore · Brazil (South America)One of the earliest long-necked plant-eaters, hinting at the giants to come.
• Macrogryphosaurus Cretaceous · Herbivore · Argentina (South America)A medium plant-eater with thin plates on its ribcage like its cousin Talenkauen.
• Magnamanus Cretaceous · Herbivore · Spain (Europe)An iguanodont plant-eater from the early Cretaceous of Spain.
• Magnapaulia Cretaceous · Herbivore · Mexico (North America)One of the largest duck-billed dinosaurs, a giant crested hadrosaur from Mexico.
• Magnirostris Cretaceous · Herbivore · Mongolia (Asia)A small frilled dinosaur with a notably large, deep beak.
• Magnosaurus Jurassic · Carnivore · United KingdomAn early megalosaur predator from the Middle Jurassic of England.
• Magyarosaurus Cretaceous · Herbivore · Romania (Europe)A dwarf titanosaur that shrank to horse-size living on a prehistoric island.
• Mahakala Cretaceous · Carnivore · Mongolia (Asia)One of the smallest and most primitive raptors, no bigger than a crow.
• Mahuidacursor Cretaceous · Herbivore · Argentina (South America)A medium plant-eater built for running, from Patagonia.
• Maiasaura Cretaceous · Herbivore · USA (Montana)A duck-billed dinosaur famous for nesting in big colonies and caring for its babies.
• Maip Cretaceous · Carnivore · Argentina (South America)A giant megaraptorid, one of the last great predators of South America.
• Majungasaurus Cretaceous · Carnivore · Madagascar (Africa)A stocky, short-snouted horned predator from the island of Madagascar.
• Malakhelisaurus Jurassic · Herbivore · PakistanMalakhelisaurus is a long-necked plant-eating sauropod known from fossils found in Pakistan. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Malarguesaurus Cretaceous · Herbivore · ArgentinaMalarguesaurus is a long-necked plant-eating sauropod known from fossils found in Argentina. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Malawisaurus Cretaceous · Herbivore · Malawi (Africa)An armoured titanosaur and one of the earliest with a fairly well-known skull.
• Maleevus Cretaceous · Herbivore · Mongolia (Asia)A poorly known armored dinosaur from the Gobi Desert.
• Malefica Cretaceous · Herbivore · The United StatesMalefica is a duck-billed plant-eating dinosaur known from fossils found in the United States. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Mamenchisaurus Jurassic · Herbivore · China (Asia)A sauropod famous for one of the longest necks of any animal ever.
• Mandschurosaurus Cretaceous · Herbivore · LaosMandschurosaurus is a duck-billed plant-eating dinosaur known from fossils found in Laos. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Manidens Jurassic · Herbivore · Argentina (South America)A tiny plant-eater with unusual hand-shaped teeth.
• Mansourasaurus Cretaceous · Herbivore · Egypt (Africa)A school-bus-sized titanosaur and a rare, important find from Africa.
• Mantellisaurus Cretaceous · Herbivore · England (Europe)A lighter, more slender relative of Iguanodon from England.
• Mapusaurus Cretaceous · Carnivore · Argentina (South America)A giant predator, a close relative of Giganotosaurus, found in groups.
• Maraapunisaurus Jurassic · Herbivore · USA (Colorado)Possibly the longest dinosaur ever, known only from a now-lost giant backbone.
• Marisaurus Cretaceous · Herbivore · Pakistan (Asia)A poorly-known titanosaur from Balochistan, considered scientifically doubtful by many researchers.
• Marshosaurus Jurassic · Carnivore · USA (Utah)A medium Jurassic predator that lived alongside Allosaurus.
• Martharaptor Cretaceous · Carnivore · The United StatesMartharaptor is a predatory theropod dinosaur known from fossils found in the United States. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Masiakasaurus Cretaceous · Carnivore · Madagascar (Africa)A small predator with bizarre front teeth that jutted straight forward.
• Massospondylus Jurassic · Herbivore · South AfricaAn early plant-eater known from fossil nests and some of the oldest dinosaur embryos.
• Matheronodon Cretaceous · Herbivore · France (Europe)A plant-eater with huge, scissor-like teeth for slicing tough leaves.
• Maxakalisaurus Cretaceous · Herbivore · Brazil (South America)A large armored titanosaur, one of the biggest dinosaurs from Brazil.
• Mbiresaurus Triassic · Omnivore · Zimbabwe (Africa)Africa's oldest known dinosaur, a small early plant-and-meat eater, named in 2022.
• Medusaceratops Cretaceous · Herbivore · USA (Montana)A horned dinosaur whose curling frill hooks recall Medusa's snakes.
• Megalosaurus Jurassic · Carnivore · England (Europe)A large Jurassic predator with a very special place in the history of science.
• Megapnosaurus Jurassic · Carnivore · South Africa & ZimbabweA small, slender Early Jurassic predator that lived in groups.
• Megaraptor Cretaceous · Carnivore · Argentina (South America)A predator named for the huge sickle claws on its hands (not its feet).
• Mei Cretaceous · Carnivore · China (Asia)A tiny troodontid found curled up asleep, just like a bird tucking its head under its wing.
• Melanorosaurus Triassic · Herbivore · South AfricaAn early four-legged plant-eater, close to the origin of the true sauropods.
• Mendozasaurus Cretaceous · Herbivore · Argentina (South America)A large armoured titanosaur from the Mendoza region of Argentina.
• Menefeeceratops Cretaceous · Herbivore · USA (New Mexico)One of the oldest known centrosaurine horned dinosaurs.
• Menucocelsior Cretaceous · Herbivore · Argentina (South America)A titanosaur from the final days of the dinosaurs in Patagonia.
• Meraxes Cretaceous · Carnivore · Argentina (South America)A giant shark-toothed predator that, like T. rex, had tiny arms evolved separately.
• Mercuriceratops Cretaceous · Herbivore · USA (Montana)A horned dinosaur with wing-like flanges on its frill.
• Meroktenos Triassic · Herbivore · Lesotho (Africa)An early long-necked plant-eater from Lesotho.
• Metriacanthosaurus Jurassic · Carnivore · England (Europe)A large English predator with moderately tall spines along its back.
• Mexidracon Cretaceous · Omnivore · MexicoMexidracon is a lightly-built ostrich-like dinosaur known from fossils found in Mexico. It is classified within Theropoda · Ornithomimidae. Its full size, appearance and biology are not yet widely documented.
• Microceratus Cretaceous · Herbivore · China & Mongolia (Asia)One of the smallest horned dinosaurs, a nimble two-legged plant-eater.
• Micropachycephalosaurus Cretaceous · Herbivore · China (Asia)A tiny plant-eater famous for having one of the longest names of any dinosaur.
• Microraptor Cretaceous · Carnivore · China (Asia)A tiny feathered raptor with wings on BOTH its arms and legs a 'four-winged' dinosaur.
• Microvenator Cretaceous · Omnivore · USA (Montana)A small beaked oviraptorosaur, an early cousin of the giant Gigantoraptor.
• Mierasaurus Cretaceous · Herbivore · USA (Utah)A turiasaur sauropod, a surprise find of a European-style giant in North America.
• Migmanychion Cretaceous · Carnivore · ChinaMigmanychion is a predatory theropod dinosaur known from fossils found in China. It is classified within Theropoda · Maniraptora. Its full size, appearance and biology are not yet widely documented.
• Minimocursor Jurassic · Herbivore · Thailand (Asia)A small, swift plant-eater and one of Thailand's best dinosaur skeletons.
• Minmi Cretaceous · Herbivore · AustraliaA small armoured dinosaur and one of the first ever found in Australia.
• Minotaurasaurus Cretaceous · Herbivore · Mongolia (Asia)An armored dinosaur whose skull has horn-like cheek projections.
• Minqaria Cretaceous · Herbivore · MoroccoMinqaria is a duck-billed plant-eating dinosaur known from fossils found in Morocco. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Miragaia Jurassic · Herbivore · Portugal (Europe)A stegosaur with a surprisingly long neck of at least 17 vertebrae.
• Mirischia Cretaceous · Carnivore · Brazil (South America)A small predator that preserved traces of its air-filled insides.
• Mnyamawamtuka Cretaceous · Herbivore · Tanzania (Africa)A titanosaur with heart-shaped tail bones, from Tanzania.
• Moabosaurus Cretaceous · Herbivore · USA (Utah)A medium sauropod known from a bonebed near Moab, Utah.
• Mochlodon Cretaceous · Herbivore · Austria (Europe)A small plant-eater from the late Cretaceous islands of Europe.
• Mojoceratops Cretaceous · Herbivore · Canada (Alberta)A horned dinosaur with a heart-shaped frill, perhaps used for display.
• Mongolosaurus Cretaceous · Herbivore · China (Asia)A long-necked sauropod known from teeth and neck bones from Inner Mongolia.
• Mongolostegus Cretaceous · Herbivore · Mongolia (Asia)One of the last of the plated stegosaurs, from Mongolia.
• Monoclonius Cretaceous · Herbivore · The United StatesMonoclonius is a horned, frilled plant-eater known from fossils found in the United States. It is classified within Ceratopsia · Ceratopsidae. Its full size, appearance and biology are not yet widely documented.
• Monolophosaurus Jurassic · Carnivore · China (Asia)A mid-sized predator with a single hollow crest running along the top of its skull.
• Mononykus Cretaceous · Carnivore · Mongolia (Asia)A small, fast, long-legged dinosaur with stubby arms ending in a single stout claw.
• Montanoceratops Cretaceous · Herbivore · USA (Montana)A small frilled dinosaur with a tiny nose horn.
• Morelladon Cretaceous · Herbivore · Spain (Europe)A medium plant-eater with a tall sail-like ridge along its back.
• Moros Cretaceous · Carnivore · USA (Utah)A tiny early tyrannosaur, showing how the group started small before becoming giants.
• Morrosaurus Cretaceous · Herbivore · AntarcticaA small plant-eater that lived on a forested, near-polar Antarctica.
• Mosaiceratops Cretaceous · Herbivore · China (Asia)A small, early horned dinosaur with a patchwork of primitive and advanced traits.
• Murusraptor Cretaceous · Carnivore · Argentina (South America)A large, lightly-built megaraptor with big hand claws.
• Musankwa Triassic · Herbivore · Zimbabwe (Africa)An early plant-eater from the shores of Lake Kariba, named in 2024.
• Mussaurus Triassic · Herbivore · Argentina (South America)An early plant-eater whose tiny hatchlings inspired its 'mouse lizard' name.
• Muttaburrasaurus Cretaceous · Herbivore · AustraliaOne of Australia's best-known dinosaurs, a plant-eater with a bony nose bump.
• Muyelensaurus Cretaceous · Herbivore · Argentina (South America)A slender, lightly built titanosaur from Patagonia.
• Mymoorapelta Jurassic · Herbivore · USA (Colorado)One of the oldest known ankylosaurs in North America.

N

• Naashoibitosaurus Cretaceous · Herbivore · USA (New Mexico)A duck-billed dinosaur with an arched, Roman-nosed snout.
• Nagatitan Cretaceous · Herbivore · ThailandNagatitan is a long-necked plant-eating sauropod known from fossils found in Thailand. It is classified within Sauropoda · Euhelopodidae. Its full size, appearance and biology are not yet widely documented.
• Nambalia Triassic · Herbivore · India (Asia)An early long-necked plant-eater from the late Triassic of India.
• Nankangia Cretaceous · Herbivore · China (Asia)A beaked oviraptorosaur that probably leaned toward eating plants.
• Nanningosaurus Cretaceous · Herbivore · China (Asia)A duck-billed dinosaur from southern China.
• Nanosaurus Jurassic · Herbivore · USA (Colorado)A tiny, fleet-footed plant-eater from the Morrison rocks.
• Nanotyrannus Cretaceous · Carnivore · The United StatesNanotyrannus is a predatory theropod dinosaur known from fossils found in the United States. It is classified within Theropoda · Tyrannosauroidea. Its full size, appearance and biology are not yet widely documented.
• Nanshiungosaurus Cretaceous · Herbivore · China (Asia)A pot-bellied, plant-eating therizinosaur from southern China.
• Nanuqsaurus Cretaceous · Carnivore · USA (Alaska)A smaller tyrannosaur that lived in the cold, dark polar forests of ancient Alaska.
• Nanyangosaurus Cretaceous · Herbivore · ChinaNanyangosaurus is a plant-eating ornithischian dinosaur known from fossils found in China. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Napaisaurus Cretaceous · Herbivore · ChinaNapaisaurus is a plant-eating ornithischian dinosaur known from fossils found in China. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Narambuenatitan Cretaceous · Herbivore · Argentina (South America)A titanosaur known from a fairly complete skeleton in Patagonia.
• Narindasaurus Jurassic · Herbivore · MadagascarNarindasaurus is a long-necked plant-eating sauropod known from fossils found in Madagascar. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Nasutoceratops Cretaceous · Herbivore · USA (Utah)A horned dinosaur with an oversized nose and long brow horns that curved forward like a bull's.
• Natovenator Cretaceous · Carnivore · Mongolia (Asia)A streamlined, goose-necked raptor that may have dived for fish.
• Navajoceratops Cretaceous · Herbivore · USA (New Mexico)A horned dinosaur that helps trace how frills changed over time.
• Nebulasaurus Jurassic · Herbivore · China (Asia)A mid-sized sauropod known from a well-preserved braincase.
• Nedcolbertia Cretaceous · Carnivore · USA (Utah)A lightly built early coelurosaur predator known from young individuals.
• Nedoceratops Cretaceous · Herbivore · USA (Wyoming)A Triceratops relative at the center of a famous identity debate.
• Neimongosaurus Cretaceous · Herbivore · China (Asia)A pot-bellied, long-clawed plant-eating theropod from Inner Mongolia.
• Nemegtomaia Cretaceous · Carnivore · Mongolia (Asia)A crested, parrot-beaked oviraptorid found fossilized sitting on its nest of eggs.
• Nemegtonykus Cretaceous · Carnivore · Mongolia (Asia)A small, one-fingered insect-eater from the Nemegt Basin.
• Nemegtosaurus Cretaceous · Herbivore · Mongolia (Asia)A Mongolian titanosaur known mainly from a beautifully preserved skull.
• Neosodon Jurassic · Herbivore · France (Europe)A giant sauropod known from a single large tooth.
• Neovenator Cretaceous · Carnivore · England (Europe)The best-known large predator of Early Cretaceous Britain.
• Neuquenraptor Cretaceous · Carnivore · Argentina (South America)A sickle-clawed raptor from Patagonia.
• Neuquensaurus Cretaceous · Herbivore · Argentina (South America)A small, armored titanosaur with bony studs in its skin.
• Nevadadromeus Cretaceous · Herbivore · The United StatesNevadadromeus is a dinosaur known from fossils found in the United States. It is classified within Ornithopoda · Thescelosauridae. Its full size, appearance and biology are not yet widely documented.
• Ngexisaurus Jurassic · Carnivore · ChinaNgexisaurus is a predatory theropod dinosaur known from fossils found in China. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Ngwevu Jurassic · Herbivore · South AfricaAn early plant-eater that sat unrecognised in a museum for decades.
• Nhandumirim Triassic · Carnivore · Brazil (South America)A small, fleet-footed early dinosaur from the dawn of the dinosaur age.
• Nicksaurus Cretaceous · Herbivore · PakistanNicksaurus is a long-necked plant-eating sauropod known from fossils found in Pakistan. It is classified within Sauropoda · Saltasauridae. Its full size, appearance and biology are not yet widely documented.
• Niebla Cretaceous · Carnivore · ArgentinaNiebla is a predatory theropod dinosaur known from fossils found in Argentina. It is classified within Theropoda · Abelisauridae. Its full size, appearance and biology are not yet widely documented.
• Nigersaurus Cretaceous · Herbivore · Niger (Africa)A sauropod with a wide, straight-edged mouth that worked like a lawnmower.
• Ningyuansaurus Cretaceous · Omnivore · China (Asia)A feathered oviraptorosaur preserved with seeds in its belly.
• Ninjatitan Cretaceous · Herbivore · Argentina (South America)The oldest known titanosaur, pushing the group's origin back in time.
• Niobrarasaurus Cretaceous · Herbivore · USA (Kansas)An armored dinosaur whose body washed out to sea and sank into chalk.
• Nipponosaurus Cretaceous · Herbivore · Japan (Sakhalin)A crested duck-bill found on Sakhalin, then part of Japan.
• Noasaurus Cretaceous · Carnivore · Argentina (South America)A small abelisaur relative that gave its name to the noasaurid family.
• Nodocephalosaurus Cretaceous · Herbivore · USA (New Mexico)An armored dinosaur with bulbous knobs of bone on its skull.
• Nodosaurus Cretaceous · Herbivore · USA (Wyoming)One of the first armored dinosaurs ever named from North America.
• Nomingia Cretaceous · Omnivore · Mongolia (Asia)A beaked oviraptorosaur whose tail ended in a fused bone like a bird's.
• Nopcsaspondylus Cretaceous · Herbivore · Argentina (South America)A comb-toothed sauropod known from a now-lost backbone.
• Normanniasaurus Cretaceous · Herbivore · France (Europe)An early titanosaur from the early Cretaceous of Normandy, France.
• Notatesseraeraptor Triassic · Carnivore · Switzerland (Europe)An early predator with a mosaic of features from different theropod groups.
• Nothronychus Cretaceous · Herbivore · USA (New Mexico)A tall, big-bellied, feathered therizinosaur with enormous curved hand claws.
• Notoceratops Cretaceous · Herbivore · ArgentinaNotoceratops is a plant-eating ornithischian dinosaur known from fossils found in Argentina. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Notocolossus Cretaceous · Herbivore · Argentina (South America)One of the largest land animals ever, known from a giant arm and foot.
• Notohypsilophodon Cretaceous · Herbivore · Argentina (South America)A small, fast plant-eater from Patagonia.
• Nqwebasaurus Cretaceous · Carnivore · South AfricaThe oldest coelurosaur from Africa, a small fuzzy predator nicknamed 'Kirky'.
• Nullotitan Cretaceous · Herbivore · Argentina (South America)A huge titanosaur from the far south of Patagonia.
• Nuthetes Cretaceous · Carnivore · The United KingdomNuthetes is a predatory theropod dinosaur known from fossils found in the United Kingdom. It is classified within Theropoda · Dromaeosauridae. Its full size, appearance and biology are not yet widely documented.
• Nyasasaurus Triassic · Omnivore · TanzaniaNyasasaurus is a early dinosaur relative known from fossils found in Tanzania. It is classified within Dinosauriformes · basal. Its full size, appearance and biology are not yet widely documented.

O

• Obelignathus Cretaceous · Herbivore · FranceObelignathus is a plant-eating ornithischian dinosaur known from fossils found in France. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Oblitosaurus Jurassic · Herbivore · Spain (Europe)A large plant-eater known from footprints and a single tooth, named in 2022.
• Oceanotitan Jurassic · Herbivore · Portugal (Europe)A long-necked sauropod from the Atlantic coast of Portugal.
• Ohmdenosaurus Jurassic · Herbivore · GermanyOhmdenosaurus is a long-necked plant-eating sauropod known from fossils found in Germany. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Ojoceratops Cretaceous · Herbivore · USA (New Mexico)A close cousin of Triceratops with a squared-off frill.
• Ojoraptorsaurus Cretaceous · Omnivore · USA (New Mexico)A beaked oviraptorosaur from the late Cretaceous of New Mexico.
• Oksoko Cretaceous · Omnivore · Mongolia (Asia)A beaked oviraptorid with only two fingers on each hand, found in groups.
• Olorotitan Cretaceous · Herbivore · Russia (Asia)A duck-billed dinosaur with a broad, fan-shaped crest and a long, swan-like neck.
• Omeisaurus Jurassic · Herbivore · China (Asia)A Chinese sauropod with an extraordinarily long neck made of many vertebrae.
• Ondogurvel Cretaceous · Carnivore · Mongolia (Asia)A small, one-fingered insect-eater from the Gobi Desert.
• Oohkotokia Cretaceous · Herbivore · USA (Montana)A club-tailed armored dinosaur from Montana.
• Opisthocoelicaudia Cretaceous · Herbivore · Mongolia (Asia)A stocky titanosaur whose tail bones suggest it could rear up to feed.
• Oplosaurus Cretaceous · Herbivore · The United KingdomOplosaurus is a long-necked plant-eating sauropod known from fossils found in the United Kingdom. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Orkoraptor Cretaceous · Carnivore · Argentina (South America)A slender predator from the far south of Patagonia.
• Ornatops Cretaceous · Herbivore · The United StatesOrnatops is a duck-billed plant-eating dinosaur known from fossils found in the United States. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Ornithodesmus Cretaceous · Carnivore · United KingdomA small raptor from the Isle of Wight, long misidentified.
• Ornitholestes Jurassic · Carnivore · USA (Wyoming)A small, agile Jurassic predator that likely snatched up little animals.
• Ornithomimus Cretaceous · Herbivore · USA & CanadaA fast, feathered, ostrich-like runner with a toothless beak (an omnivore).
• Ornithopsis Cretaceous · Herbivore · United KingdomA sauropod whose air-filled bones were once mistaken for a giant bird's.
• Orodromeus Cretaceous · Herbivore · USA (Montana)A small, fleet-footed plant-eater that nested near Maiasaura colonies.
• Oryctodromeus Cretaceous · Herbivore · USA (Montana)A small plant-eater and the first dinosaur known to dig burrows and live underground.
• Osmakasaurus Cretaceous · Herbivore · The United StatesOsmakasaurus is a plant-eating ornithischian dinosaur known from fossils found in the United States. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Ostafrikasaurus Jurassic · Carnivore · Tanzania (Africa)A predator that may be the oldest known relative of the spinosaurs.
• Ostromia Jurassic · Carnivore · Germany (Europe)A small bird-like dinosaur once mistaken for Archaeopteryx.
• Ouranosaurus Cretaceous · Herbivore · Niger (Africa)A plant-eater with a tall sail or fatty hump along its back.
• Overoraptor Cretaceous · Carnivore · Argentina (South America)A bird-like raptor whose wing-like arms hint at how flight evolved.
• Overosaurus Cretaceous · Herbivore · Argentina (South America)A relatively small armored titanosaur from Patagonia.
• Oviraptor Cretaceous · Carnivore · Mongolia (Asia)A parrot-beaked, feathered dinosaur (likely an omnivore) that was unfairly accused of stealing eggs.
• Owenodon Cretaceous · Herbivore · United KingdomAn iguanodont known from a single fossil lower jaw.
• Oxalaia Cretaceous · Carnivore · Brazil (South America)A huge crocodile-snouted, fish-eating spinosaur from northern Brazil.
• Ozraptor Jurassic · Carnivore · AustraliaOne of the oldest known Australian dinosaurs, from a single shin bone.

P

• Pachycephalosaurus Cretaceous · Herbivore · USA (North America)A two-legged plant-eater with a massive domed skull up to 25 cm thick, ringed by bony knobs.
• Pachyrhinosaurus Cretaceous · Herbivore · Canada & USA (Alaska)A horned dinosaur with a massive bony pad instead of a nose horn, which roamed in huge herds.
• Padillasaurus Cretaceous · Herbivore · Colombia (South America)A long-necked sauropod and one of the few good dinosaurs known from Colombia.
• Pakisaurus Cretaceous · Herbivore · Pakistan (Asia)A fragmentary titanosaur from Pakistan; its validity as a distinct genus is widely doubted.
• Paludititan Cretaceous · Herbivore · Romania (Europe)A titanosaur from the marshy island world of late Cretaceous Romania.
• Paluxysaurus Cretaceous · Herbivore · USA (Texas)A long-necked sauropod and the state dinosaur of Texas.
• Pampadromaeus Triassic · Omnivore · Brazil (South America)A small, fast early dinosaur near the root of the sauropod family tree.
• Pamparaptor Cretaceous · Carnivore · Argentina (South America)A tiny raptor with a bird-like, grasping foot.
• Panamericansaurus Cretaceous · Herbivore · Argentina (South America)A titanosaur with a flexible, downward-curving tail.
• Pandoravenator Jurassic · Carnivore · ArgentinaPandoravenator is a predatory theropod dinosaur known from fossils found in Argentina. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Panguraptor Jurassic · Carnivore · China (Asia)A small, lightly built early predator from China.
• Panoplosaurus Cretaceous · Herbivore · Canada (Alberta)A heavily armored, spiky nodosaur with no tail club.
• Panphagia Triassic · Omnivore · Argentina (South America)One of the earliest sauropod ancestors, likely an omnivore.
• Pantydraco Triassic · Herbivore · United Kingdom (Wales)A small early plant-eater from a quarry in Wales.
• Papiliovenator Cretaceous · Carnivore · ChinaPapiliovenator is a predatory theropod dinosaur known from fossils found in China. It is classified within Theropoda · Troodontidae. Its full size, appearance and biology are not yet widely documented.
• Paralitherizinosaurus Cretaceous · Herbivore · Japan (Asia)A long-clawed, plant-eating therizinosaur from coastal Japan.
• Paralititan Cretaceous · Herbivore · Egypt (Africa)A gigantic titanosaur that lived in ancient coastal mangrove swamps.
• Paranthodon Cretaceous · Herbivore · South AfricaOne of the few African stegosaurs and among the last of its kind.
• Pararhabdodon Cretaceous · Herbivore · SpainPararhabdodon is a duck-billed plant-eating dinosaur known from fossils found in Spain. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Parasaurolophus Cretaceous · Herbivore · North AmericaA 'duck-billed' dinosaur famous for the long, curved, hollow crest sweeping back from its head, which connected to its nasal passages.
• Paraxenisaurus Cretaceous · Carnivore · Mexico (North America)A large ostrich-dinosaur from Mexico, a relative of Deinocheirus.
• Pareisactus Cretaceous · Herbivore · Spain (Europe)A small plant-eater from the late Cretaceous islands of Spain, named in 2019.
• Parksosaurus Cretaceous · Herbivore · Canada (Alberta)A small, big-eyed plant-eater built for speed.
• Paronychodon Cretaceous · Carnivore · The United StatesParonychodon is a predatory theropod dinosaur known from fossils found in the United States. It is classified within Theropoda · Coelurosauria. Its full size, appearance and biology are not yet widely documented.
• Parvicursor Cretaceous · Carnivore · Mongolia (Asia)One of the smallest dinosaurs known, no bigger than a small chicken.
• Pashtosaurus Cretaceous · Herbivore · PakistanPashtosaurus is a long-necked plant-eating sauropod known from fossils found in Pakistan. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Patagonykus Cretaceous · Carnivore · Argentina (South America)A southern alvarezsaur with stubby, powerful arms tipped by a big single claw.
• Patagopelta Cretaceous · Herbivore · Argentina (South America)A dwarf armored dinosaur from Patagonia, named in 2023.
• Patagosaurus Jurassic · Herbivore · Argentina (South America)A large Jurassic sauropod and one of the best-known from South America.
• Patagotitan Cretaceous · Herbivore · Argentina (South America)Among the largest land animals ever to have lived.
• Pawpawsaurus Cretaceous · Herbivore · USA (Texas)An armored, club-less nodosaur known from a well-preserved skull.
• Pectinodon Cretaceous · Carnivore · USA (Wyoming)One of the last bird-like troodontids before the extinction.
• Pedopenna Jurassic · Carnivore · China (Asia)A small bird-like dinosaur with long feathers on its feet.
• Pegomastax Jurassic · Herbivore · South AfricaA tiny, fanged plant-eater the size of a house cat, with a parrot-like beak.
• Pelecanimimus Cretaceous · Carnivore · Spain (Europe)An ostrich-dinosaur with an astonishing 220 tiny teeth and a possible throat pouch.
• Pellegrinisaurus Cretaceous · Herbivore · Argentina (South America)A huge titanosaur found near Lake Pellegrini in Patagonia.
• Peloroplites Cretaceous · Herbivore · USA (Utah)One of the largest nodosaurs, a heavily armored tank of a dinosaur.
• Pelorosaurus Cretaceous · Herbivore · England (Europe)One of the first sauropods recognised as a giant land reptile.
• Pendraig Triassic · Carnivore · United Kingdom (Wales)The oldest known meat-eating dinosaur from the United Kingdom, found in Wales.
• Penelopognathus Cretaceous · Herbivore · China (Asia)An iguanodont known mainly from a lower jaw.
• Pentaceratops Cretaceous · Herbivore · USA (North America)A horned giant with an enormous frill and extra spikes on its cheeks.
• Perijasaurus Jurassic · Herbivore · ColombiaPerijasaurus is a long-necked plant-eating sauropod known from fossils found in Colombia. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Petrobrasaurus Cretaceous · Herbivore · Argentina (South America)A huge titanosaur found in the oil-rich rocks of Patagonia.
• Petrustitan Cretaceous · Herbivore · Romania (Europe)A dwarf titanosaur shrunk down by life on an ancient island.
• Philovenator Cretaceous · Carnivore · China (Asia)A tiny bird-like troodontid from Inner Mongolia, China.
• Phosphatotitan Cretaceous · Herbivore · MoroccoPhosphatotitan is a long-necked plant-eating sauropod known from fossils found in Morocco. It is classified within Sauropoda · Titanosauria. Its full size, appearance and biology are not yet widely documented.
• Phuwiangosaurus Cretaceous · Herbivore · Thailand (Asia)A large long-necked dinosaur and one of Thailand's best-known dinosaurs.
• Phuwiangvenator Cretaceous · Carnivore · Thailand (Asia)A fast, slashing predator from early Cretaceous Thailand.
• Piatnitzkysaurus Jurassic · Carnivore · Argentina (South America)A mid-sized predator and one of the best-known Jurassic theropods of South America.
• Pilmatueia Cretaceous · Herbivore · Argentina (South America)A short-necked, spiny-backed sauropod from early Cretaceous Patagonia.
• Pinacosaurus Cretaceous · Herbivore · Mongolia & China (Asia)A desert ankylosaur whose young are often found huddled together in groups.
• Pisanosaurus Triassic · Herbivore · Argentina (South America)Possibly one of the oldest bird-hipped dinosaurs known.
• Pitekunsaurus Cretaceous · Herbivore · Argentina (South America)A titanosaur whose name means 'discovery' in the Mapuche language.
• Piveteausaurus Jurassic · Carnivore · France (Europe)A large predator known from a braincase from Normandy, France.
• Planicoxa Cretaceous · Herbivore · USA (Utah)A medium iguanodont from the Cedar Mountain rocks of Utah.
• Plateosauravus Triassic · Herbivore · South AfricaAn early long-necked plant-eater from Triassic South Africa.
• Plateosaurus Triassic · Herbivore · Germany & Switzerland (Europe)An early long-necked plant-eater that could rear up on two legs to reach high foliage.
• Platyceratops Cretaceous · Herbivore · Mongolia (Asia)A small, frilled relative of Protoceratops with a broad face.
• Platypelta Cretaceous · Herbivore · Canada (Alberta)A club-tailed armored dinosaur from Alberta.
• Platytholus Cretaceous · Herbivore · USA (Montana)A dome-headed dinosaur whose skull hints at a bristly covering in life.
• Plesiohadros Cretaceous · Herbivore · Mongolia (Asia)A duck-bill ancestor that helps trace how hadrosaurs evolved.
• Pneumatoraptor Cretaceous · Carnivore · HungaryPneumatoraptor is a predatory theropod dinosaur known from fossils found in Hungary. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Podokesaurus Jurassic · Carnivore · USA (Massachusetts)A tiny, speedy early predator and the state dinosaur of Massachusetts.
• Poekilopleuron Jurassic · Carnivore · France (Europe)A large predator and one of the earliest big theropods ever described.
• Polacanthus Cretaceous · Herbivore · England (Europe)A spiky armoured dinosaur with a shield of bone fused over its hips.
• Portellsaurus Cretaceous · Herbivore · Spain (Europe)An iguanodont plant-eater that sheds light on duck-bill origins.
• Powellvenator Triassic · Carnivore · Argentina (South America)A small, fleet-footed early predator from northwestern Argentina.
• Pradhania Jurassic · Herbivore · India (Asia)An early plant-eater from the early Jurassic of central India.
• Prenocephale Cretaceous · Herbivore · Mongolia (Asia)A bonehead dinosaur with a high, rounded dome ringed by small bony bumps.
• Prenoceratops Cretaceous · Herbivore · USA (Montana)A small, hornless frilled dinosaur known from a bonebed of many individuals.
• Priconodon Cretaceous · Herbivore · USA (Maryland)An armored nodosaur known mainly from large teeth.
• Proa Cretaceous · Herbivore · Spain (Europe)An iguanodont with a pointed, prow-shaped lower jaw.
• Probactrosaurus Cretaceous · Herbivore · China (Asia)A plant-eater close to the ancestry of the duck-billed dinosaurs.
• Probrachylophosaurus Cretaceous · Herbivore · USA (Montana)A huge duck-bill that bridges crestless and small-crested species.
• Proceratosaurus Jurassic · Carnivore · England (Europe)A small, crested predator that turned out to be one of the earliest tyrannosaur relatives.
• Procompsognathus Triassic · Carnivore · Germany (Europe)A tiny, fast predator from the late Triassic of Germany.
• Propanoplosaurus Cretaceous · Herbivore · USA (Maryland)An armored dinosaur known from a rare hatchling skeleton.
• Prosaurolophus Cretaceous · Herbivore · Canada (Alberta)A duck-billed dinosaur with a small bony bump in front of its eyes.
• Protarchaeopteryx Cretaceous · Carnivore · China (Asia)A turkey-sized feathered dinosaur with symmetrical, non-flight tail feathers.
• Protathlitis Cretaceous · Carnivore · Spain (Europe)A fish-eating spinosaur from the early Cretaceous of eastern Spain.
• Protoceratops Cretaceous · Herbivore · Mongolia (Asia)A sheep-sized early relative of Triceratops with a bony frill but no large horns.
• Protognathosaurus Jurassic · Herbivore · China (Asia)A Middle Jurassic sauropod known mainly from a lower jaw.
• Protohadros Cretaceous · Herbivore · USA (Texas)An early duck-bill relative from the Cretaceous of Texas.
• Psittacosaurus Cretaceous · Herbivore · China & Mongolia (Asia)A small early relative of Triceratops with a parrot-like beak and tail bristles.
• Pteranodon Cretaceous · Carnivore · North AmericaA huge flying reptile with a long backward-pointing head crest and a toothless beak, it soared over ancient seas snatching fish from the water.
• Puertasaurus Cretaceous · Herbivore · Argentina (South America)One of the most massive land animals ever, known from just four giant bones.
• Pukyongosaurus Cretaceous · Herbivore · South Korea (Asia)A long-necked sauropod and one of the few good dinosaurs from Korea.
• Pulanesaura Jurassic · Herbivore · South AfricaAn early true sauropod that fed with its head held low.
• Pulaosaurus Jurassic · Herbivore · ChinaPulaosaurus is a plant-eating ornithischian dinosaur known from fossils found in China. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Punatitan Cretaceous · Herbivore · Argentina (South America)A titanosaur from northwestern Argentina, named in 2019.
• Pycnonemosaurus Cretaceous · Carnivore · Brazil (South America)The largest known abelisaur, a short-faced horned predator from Brazil.
• Pyroraptor Cretaceous · Carnivore · France (Europe)A small European raptor first found in rocks exposed by a forest fire.

Q

• Qaikshaheen Cretaceous · Herbivore · PakistanQaikshaheen is a long-necked plant-eating sauropod known from fossils found in Pakistan. It is classified within Sauropoda · Titanosauria. Its full size, appearance and biology are not yet widely documented.
• Qantassaurus Cretaceous · Herbivore · AustraliaA small, fast polar plant-eater that lived in the dark, cold forests of southern Australia.
• Qianjiangsaurus Cretaceous · Herbivore · ChinaQianjiangsaurus is a plant-eating ornithischian dinosaur known from fossils found in China. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Qianlong Jurassic · Herbivore · ChinaQianlong is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropodomorpha · Massospondylidae. Its full size, appearance and biology are not yet widely documented.
• Qianzhousaurus Cretaceous · Carnivore · China (Asia)A long-snouted tyrannosaur nicknamed 'Pinocchio rex' for its slender muzzle.
• Qiaowanlong Cretaceous · Herbivore · China (Asia)A brachiosaur cousin sometimes called the first good Chinese brachiosaurid.
• Qijianglong Jurassic · Herbivore · China (Asia)A long-necked Chinese sauropod whose neck made up half its length.
• Qingxiusaurus Cretaceous · Herbivore · ChinaQingxiusaurus is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Saltasauridae. Its full size, appearance and biology are not yet widely documented.
• Qinlingosaurus Cretaceous · Herbivore · China (Asia)A titanosaur from the Qinling Mountains of central China.
• Qiupalong Cretaceous · Carnivore · China (Asia)One of the few ostrich-dinosaurs known from China.
• Qiupanykus Cretaceous · Carnivore · China (Asia)A small alvarezsaur found near broken oviraptorid eggshells.
• Quaesitosaurus Cretaceous · Herbivore · Mongolia (Asia)A long-necked titanosaur known from a horse-like skull.
• Quetecsaurus Cretaceous · Herbivore · Argentina (South America)A large titanosaur from the Mendoza region of Argentina.
• Quilmesaurus Cretaceous · Carnivore · Argentina (South America)A medium abelisaur predator from the final days of the dinosaurs.
• Qunkasaura Cretaceous · Herbivore · Spain (Europe)A large titanosaur from the rich Lo Hueco site in Spain, named in 2024.

R

• Rahiolisaurus Cretaceous · Carnivore · India (Asia)A short-faced abelisaur predator from western India.
• Rahonavis Cretaceous · Carnivore · Madagascar (Africa)A crow-sized, bird-like raptor that may have been able to fly.
• Rajasaurus Cretaceous · Carnivore · India (Asia)India's best-known predatory dinosaur, a short-faced abelisaur with a low head horn.
• Rapator Cretaceous · Carnivore · AustraliaA large predator known from a single distinctive hand bone.
• Rapetosaurus Cretaceous · Herbivore · Madagascar (Africa)A titanosaur from Madagascar known from an exceptionally complete skeleton, including a baby.
• Raptorex Cretaceous · Carnivore · ChinaRaptorex is a predatory theropod dinosaur known from fossils found in China. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Ratchasimasaurus Cretaceous · Herbivore · Thailand (Asia)An iguanodont plant-eater known from a lower jaw from Thailand.
• Rativates Cretaceous · Omnivore · Canada (Alberta)A speedy ostrich-dinosaur from Alberta.
• Rayososaurus Cretaceous · Herbivore · Argentina (South America)A long-necked, comb-toothed sauropod from Argentina.
• Rebbachisaurus Cretaceous · Herbivore · Morocco (Africa)A long-necked North African sauropod with tall spines forming a ridge on its back.
• Regaliceratops Cretaceous · Herbivore · Canada (Alberta)A horned dinosaur whose crown-like frill earned it the nickname 'Hellboy'.
• Rhabdodon Cretaceous · Herbivore · France (Europe)A stocky plant-eater that was common on the islands of Late Cretaceous Europe.
• Rhinorex Cretaceous · Herbivore · The United StatesRhinorex is a duck-billed plant-eating dinosaur known from fossils found in the United States. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Rhoetosaurus Jurassic · Herbivore · AustraliaOne of the few Jurassic dinosaurs known from Australia.
• Rhomaleopakhus Jurassic · Herbivore · ChinaRhomaleopakhus is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Mamenchisauridae. Its full size, appearance and biology are not yet widely documented.
• Riabininohadros Cretaceous · Herbivore · UkraineRiabininohadros is a plant-eating ornithischian dinosaur known from fossils found in Ukraine. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Richardoestesia Cretaceous · Carnivore · The United StatesRichardoestesia is a predatory theropod dinosaur known from fossils found in the United States. It is classified within Theropoda · Coelurosauria. Its full size, appearance and biology are not yet widely documented.
• Rinchenia Cretaceous · Omnivore · Mongolia (Asia)A beaked oviraptorid with a tall, helmet-like head crest.
• Rinconsaurus Cretaceous · Herbivore · Argentina (South America)A mid-sized titanosaur with oddly varied, irregular tail bones.
• Riojasaurus Triassic · Herbivore · Argentina (South America)A large early plant-eater from the Triassic, too heavy to rear up on two legs.
• Riojavenatrix Cretaceous · Carnivore · Spain (Europe)A fish-eating spinosaur from northern Spain, named in 2024.
• Riparovenator Cretaceous · Carnivore · United KingdomA crocodile-snouted spinosaur from the Isle of Wight, nicknamed a 'hell heron'.
• Rocasaurus Cretaceous · Herbivore · Argentina (South America)One of the smaller titanosaurs, a compact armored long-neck.
• Rubeosaurus Cretaceous · Herbivore · The United StatesRubeosaurus is a horned, frilled plant-eater known from fossils found in the United States. It is classified within Ceratopsia · Ceratopsidae. Its full size, appearance and biology are not yet widely documented.
• Ruehleia Triassic · Herbivore · Germany (Europe)An early long-necked plant-eater from late Triassic Germany.
• Rugops Cretaceous · Carnivore · Niger (Africa)An African predator with a wrinkled, pitted face, possibly partly a scavenger.
• Ruixinia Cretaceous · Carnivore · China (Asia)A feathered raptor from the Jehol beds of China, named in 2022.
• Rukwatitan Cretaceous · Herbivore · Tanzania (Africa)A titanosaur dug from a cliff in the Rukwa Rift of Tanzania.
• Ruopodosaurus Cretaceous · Herbivore · CanadaRuopodosaurus is a armoured plant-eating dinosaur known from fossils found in Canada. It is classified within Ankylosauria · Ankylosauridae. Its full size, appearance and biology are not yet widely documented.
• Ruyangosaurus Cretaceous · Herbivore · China (Asia)One of the largest dinosaurs ever found in Asia.

S

• Sacisaurus Triassic · Omnivore · BrazilSacisaurus is a early dinosaur relative known from fossils found in Brazil. It is classified within Dinosauriformes · Silesauridae. Its full size, appearance and biology are not yet widely documented.
• Sahaliyania Cretaceous · Herbivore · China (Asia)A crested duck-bill from the Amur River region of northeast China.
• Saichania Cretaceous · Herbivore · Mongolia (Asia)A desert ankylosaur with heavy armour, spikes, and a bony tail club.
• Saltasaurus Cretaceous · Herbivore · Argentina (South America)A titanosaur with bony armour plates studding its back and sides.
• Saltriovenator Jurassic · Carnivore · Italy (Europe)The oldest known big predatory dinosaur, and the heaviest of its time.
• Samanadrinda Jurassic · Carnivore · PakistanSamanadrinda is a predatory theropod dinosaur known from fossils found in Pakistan. It is classified within Theropoda · Noasauridae. Its full size, appearance and biology are not yet widely documented.
• Sanjuansaurus Triassic · Carnivore · Argentina (South America)An early predator from the same beds as Herrerasaurus.
• Sanpasaurus Jurassic · Herbivore · China (Asia)An early sauropod from Sichuan, China.
• Santanaraptor Cretaceous · Carnivore · Brazil (South America)A small predator that preserved rare fossilised muscle and skin.
• Sanxiasaurus Jurassic · Herbivore · China (Asia)A small, fast plant-eater from near China's Three Gorges.
• Sapeornis Cretaceous · Herbivore · China (Asia)A crow-sized early bird that was a capable glider and ate seeds.
• Sarahsaurus Jurassic · Herbivore · USA (Arizona)An early plant-eater that spread to North America after a mass extinction.
• Saraikimasoom Cretaceous · Herbivore · PakistanSaraikimasoom is a long-necked plant-eating sauropod known from fossils found in Pakistan. It is classified within Sauropoda · Titanosauria. Its full size, appearance and biology are not yet widely documented.
• Sarcolestes Jurassic · Herbivore · The United KingdomSarcolestes is a plant-eating ornithischian dinosaur known from fossils found in the United Kingdom. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Sarcosaurus Jurassic · Carnivore · United KingdomOne of the earliest predatory dinosaurs known from Britain.
• Sarmientosaurus Cretaceous · Herbivore · Argentina (South America)A titanosaur known from an exquisitely preserved skull and braincase.
• Sasayamagnomus Cretaceous · Herbivore · Japan (Asia)A small early horned dinosaur from Japan, named in 2024.
• Saturnalia Triassic · Herbivore · Brazil (South America)One of the earliest known dinosaurs, a small, slender plant-eater (or omnivore).
• Saurolophus Cretaceous · Herbivore · Mongolia & CanadaA large duck-billed dinosaur with a backward-pointing spike crest, found on two continents.
• Sauroniops Cretaceous · Carnivore · Morocco (Africa)A giant shark-toothed predator known from a single skull bone over its eye.
• Sauropelta Cretaceous · Herbivore · USA (North America)An armoured nodosaur with rows of sharp spikes along its sides.
• Saurophaganax Jurassic · Carnivore · USA (Oklahoma)A giant relative of Allosaurus and one of the largest Jurassic predators of North America.
• Sauroplites Cretaceous · Herbivore · ChinaSauroplites is a armoured plant-eating dinosaur known from fossils found in China. It is classified within Ankylosauria · Nodosauridae. Its full size, appearance and biology are not yet widely documented.
• Sauroposeidon Cretaceous · Herbivore · USA (North America)One of the tallest animals ever, a brachiosaur cousin that could reach treetops six storeys up.
• Saurornithoides Cretaceous · Carnivore · Mongolia (Asia)A bird-like predator with large eyes and a big brain for its size.
• Saurornitholestes Cretaceous · Carnivore · Canada (Alberta)A small, agile raptor common across Late Cretaceous North America.
• Savannasaurus Cretaceous · Herbivore · AustraliaA broad-hipped Australian titanosaur nicknamed 'Wade'.
• Scansoriopteryx Jurassic · Carnivore · China (Asia)A sparrow-sized dinosaur with a long finger, likely adapted for climbing trees.
• Scelidosaurus Jurassic · Herbivore · England (Europe)One of the earliest and most complete armoured dinosaurs known.
• Schleitheimia Triassic · Herbivore · SwitzerlandSchleitheimia is a long-necked plant-eating sauropod known from fossils found in Switzerland. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Scipionyx Cretaceous · Carnivore · Italy (Europe)A baby predator from Italy with astonishingly preserved internal organs.
• Sciurumimus Jurassic · Carnivore · Germany (Europe)A baby predator preserved with a bushy, squirrel-like feathered tail.
• Scolosaurus Cretaceous · Herbivore · Canada (Alberta)A club-tailed armored dinosaur with rows of sharp spikes.
• Scutellosaurus Jurassic · Herbivore · USA (Arizona)A tiny, early armoured dinosaur that could run on two legs.
• Secernosaurus Cretaceous · Herbivore · Argentina (South America)The first duck-billed dinosaur ever described from South America.
• Sefapanosaurus Jurassic · Herbivore · South AfricaAn early sauropod relative whose bones sat unnoticed in a museum for decades.
• Segisaurus Jurassic · Carnivore · USA (Arizona)A small, lightly built early predator with bird-like bones.
• Segnosaurus Cretaceous · Herbivore · Mongolia (Asia)A large, slow, plant-eating therizinosaur with big claws and a heavy body.
• Seitaad Jurassic · Herbivore · USA (Utah)An early plant-eater that was buried by a collapsing sand dune.
• Sektensaurus Cretaceous · Herbivore · Argentina (South America)A small plant-eater, the first ornithopod from central Patagonia.
• Sellacoxa Cretaceous · Herbivore · United KingdomAn iguanodont from the early Cretaceous of England.
• Serendipaceratops Cretaceous · Herbivore · AustraliaA mysterious Australian plant-eater known from a single arm bone.
• Serikornis Jurassic · Carnivore · China (Asia)A tiny feathered dinosaur nicknamed 'Silky' for its soft plumage.
• Shamosaurus Cretaceous · Herbivore · Mongolia (Asia)An early armoured dinosaur from the Gobi with a tail club.
• Shanag Cretaceous · Carnivore · MongoliaShanag is a predatory theropod dinosaur known from fossils found in Mongolia. It is classified within Theropoda · Dromaeosauridae. Its full size, appearance and biology are not yet widely documented.
• Shangyang Cretaceous · Carnivore · ChinaShangyang is a predatory theropod dinosaur known from fossils found in China. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Shantungosaurus Cretaceous · Herbivore · China (Asia)The largest known duck-billed dinosaur, as big as some sauropods.
• Shanyangosaurus Cretaceous · Carnivore · ChinaShanyangosaurus is a predatory theropod dinosaur known from fossils found in China. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Shaochilong Cretaceous · Carnivore · China (Asia)The only known Asian member of the giant shark-toothed predator family.
• Shenzhousaurus Cretaceous · Omnivore · China (Asia)A primitive ostrich-dinosaur with stomach stones to grind its food.
• Shidaisaurus Jurassic · Carnivore · China (Asia)A medium predator from the Middle Jurassic of Yunnan, China.
• Shingopana Cretaceous · Herbivore · Tanzania (Africa)A titanosaur whose closest cousins lived in South America.
• Shishugounykus Jurassic · Carnivore · China (Asia)One of the earliest insect-eating alvarezsaurs, from China.
• Shixinggia Cretaceous · Omnivore · China (Asia)A beaked oviraptorosaur from southern China.
• Shri Cretaceous · Carnivore · Mongolia (Asia)A Gobi Desert raptor closely related to Velociraptor.
• Shuangbaisaurus Jurassic · Carnivore · ChinaShuangbaisaurus is a predatory theropod dinosaur known from fossils found in China. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Shuangmiaosaurus Cretaceous · Herbivore · ChinaShuangmiaosaurus is a plant-eating ornithischian dinosaur known from fossils found in China. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Shunosaurus Jurassic · Herbivore · China (Asia)A Jurassic sauropod with a surprising bony club on the end of its tail.
• Shuvuuia Cretaceous · Carnivore · Mongolia (Asia)A tiny insect-eating dinosaur with stubby, single-clawed arms and huge night-vision eyes.
• Siamodon Cretaceous · Herbivore · Thailand (Asia)An iguanodont plant-eater from early Cretaceous Thailand.
• Siamosaurus Cretaceous · Carnivore · Thailand (Asia)A fish-eating spinosaur known mostly from cone-shaped teeth.
• Siamotyrannus Cretaceous · Carnivore · Thailand (Asia)A large Thai predator once thought to be an early tyrannosaur.
• Siamraptor Cretaceous · Carnivore · Thailand (Asia)A large shark-toothed predator and the first of its kind from Southeast Asia.
• Siats Cretaceous · Carnivore · USA (Utah)A giant predator that ruled North America before tyrannosaurs took over.
• Sibirotitan Cretaceous · Herbivore · Russia (Asia)One of the first long-necked sauropods named from Siberia.
• Sidersaura Cretaceous · Herbivore · Argentina (South America)One of the largest and last of the comb-toothed rebbachisaurs, named in 2024.
• Sierraceratops Cretaceous · Herbivore · USA (New Mexico)A horned dinosaur from a distinct southern community of late Cretaceous animals.
• Sigilmassasaurus Cretaceous · Carnivore · Morocco (Africa)A large spinosaur from North Africa, possibly the same animal as Spinosaurus.
• Silesaurus Triassic · Omnivore · PolandSilesaurus is a early dinosaur relative known from fossils found in Poland. It is classified within Dinosauriformes · Silesauridae. Its full size, appearance and biology are not yet widely documented.
• Silutitan Cretaceous · Herbivore · ChinaSilutitan is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Euhelopodidae. Its full size, appearance and biology are not yet widely documented.
• Silvisaurus Cretaceous · Herbivore · USA (Kansas)An armored nodosaur with a few teeth still in the front of its beak.
• Similicaudipteryx Cretaceous · Omnivore · China (Asia)A feathered, peacock-like dinosaur whose chicks and adults had different feathers.
• Sinankylosaurus Cretaceous · Herbivore · China (Asia)A possible armored dinosaur from Shandong, known only from a single hip bone.
• Sinocalliopteryx Cretaceous · Carnivore · China (Asia)The largest known compsognathid, a fuzzy predator that hunted other feathered dinosaurs.
• Sinocephale Cretaceous · Herbivore · China (Asia)One of the oldest known dome-headed dinosaurs, re-described in 2021.
• Sinoceratops Cretaceous · Herbivore · China (Asia)The first big horned dinosaur of the Triceratops family ever found in Asia.
• Sinornithoides Cretaceous · Carnivore · China (Asia)A small troodontid found curled up in a bird-like sleeping pose.
• Sinornithomimus Cretaceous · Herbivore · China (Asia)A small ostrich-dinosaur found in groups, including young ones stuck in mud together.
• Sinornithosaurus Cretaceous · Carnivore · China (Asia)A small, fully feathered raptor that looked strikingly bird-like.
• Sinosauropteryx Cretaceous · Carnivore · China (Asia)A small predator and the first dinosaur ever found with clear evidence of feathers.
• Sinosaurus Jurassic · Carnivore · China (Asia)A twin-crested predator from early Jurassic China.
• Sinotyrannus Cretaceous · Carnivore · China (Asia)A surprisingly large early tyrannosaur, tens of millions of years before T. rex.
• Sinovenator Cretaceous · Carnivore · China (Asia)A small, primitive troodontid that looked very bird-like.
• Sinraptor Jurassic · Carnivore · China (Asia)A large Jurassic predator of China (despite its name, not a true raptor).
• Sinusonasus Cretaceous · Carnivore · China (Asia)A small feathered troodontid from the Liaoning beds of China.
• Sirindhorna Cretaceous · Herbivore · Thailand (Asia)A duck-bill ancestor from Thailand with a broad, beaked snout.
• Skorpiovenator Cretaceous · Carnivore · Argentina (South America)A horned, short-faced abelisaur predator from Argentina.
• Smitanosaurus Jurassic · Herbivore · USA (Colorado)A short-necked sauropod from the Morrison rocks of the American West.
• Sonidosaurus Cretaceous · Herbivore · China (Asia)A medium-sized titanosaur from Inner Mongolia, China.
• Sonorasaurus Cretaceous · Herbivore · USA (Arizona)A tall brachiosaur from the American Southwest, a late survivor of its group.
• Soriatitan Cretaceous · Herbivore · Spain (Europe)A brachiosaur cousin from the early Cretaceous of Spain.
• Soumyasaurus Triassic · Omnivore · The United StatesSoumyasaurus is a early dinosaur relative known from fossils found in the United States. It is classified within Dinosauriformes · Silesauridae. Its full size, appearance and biology are not yet widely documented.
• Spectrovenator Cretaceous · Carnivore · Brazil (South America)An early short-faced abelisaur predator from Brazil.
• Sphaerotholus Cretaceous · Herbivore · USA (New Mexico)A dome-headed dinosaur with a rounded, ball-like skull cap.
• Spiclypeus Cretaceous · Herbivore · USA (Montana)A horned dinosaur with frill spikes that flare out sideways and curl.
• Spicomellus Jurassic · Herbivore · Morocco (Africa)The oldest known armored dinosaur, with spikes fused straight onto its ribs.
• Spinophorosaurus Jurassic · Herbivore · Niger (Africa)An early African sauropod that may have carried spikes on the end of its tail.
• Spinops Cretaceous · Herbivore · Canada (Alberta)A horned dinosaur whose fossils sat unstudied in a museum drawer for a century.
• Spinosaurus Cretaceous · Carnivore · North Africa (Egypt & Morocco)Possibly the longest predatory dinosaur ever, with a tall sail on its back, a crocodile-like snout, and adaptations for hunting in water.
• Spinostropheus Jurassic · Carnivore · Niger (Africa)A lightly built ceratosaur predator from Niger.
• Staurikosaurus Triassic · Carnivore · Brazil (South America)One of the oldest known dinosaurs, a slender early predator from Brazil.
• Stegoceras Cretaceous · Herbivore · USA & CanadaA dog-sized bonehead dinosaur with a thick, high skull dome.
• Stegopelta Cretaceous · Herbivore · USA (Wyoming)An armored, club-less nodosaur from Wyoming.
• Stegosaurus Jurassic · Herbivore · North America & PortugalAn iconic plated dinosaur with two rows of large bony plates along its back and four sharp spikes on its tail (the 'thagomizer') for defense.
• Stegouros Cretaceous · Herbivore · Chile (South America)A small armored dinosaur with a bizarre flat tail weapon like a war club.
• Stellasaurus Cretaceous · Herbivore · Canada (Alberta)A horned dinosaur with a striking star-burst of frill spikes and a long nose horn.
• Stenonychosaurus Cretaceous · Carnivore · CanadaStenonychosaurus is a predatory theropod dinosaur known from fossils found in Canada. It is classified within Theropoda · Troodontidae. Its full size, appearance and biology are not yet widely documented.
• Stenopelix Cretaceous · Herbivore · Germany (Europe)A small, early relative of the horned and dome-headed dinosaurs.
• Stokesosaurus Jurassic · Carnivore · USA (Utah)A small, early tyrannosaur relative from the Jurassic of North America.
• Stormbergia Jurassic · Herbivore · South AfricaA larger early bird-hipped plant-eater, possibly an adult Lesothosaurus.
• Streptospondylus Jurassic · Carnivore · France (Europe)A predator that was one of the first dinosaurs ever studied by scientists.
• Struthiomimus Cretaceous · Herbivore · Canada (Alberta)A toothless, ostrich-like dinosaur built for speed (likely an omnivore).
• Struthiosaurus Cretaceous · Herbivore · Austria (Europe)One of the smallest armoured dinosaurs, a dwarf that lived on European islands.
• Stygimoloch Cretaceous · Herbivore · USA (North America)A bonehead dinosaur with a cluster of tall spikes around its bony dome.
• Styracosaurus Cretaceous · Herbivore · Canada & USAA horned dinosaur like Triceratops but crowned with a spectacular ring of long frill spikes.
• Suchomimus Cretaceous · Carnivore · Niger (Africa)A fish-eating spinosaur with a long crocodile-like snout and a low back sail.
• Suchosaurus Cretaceous · Carnivore · United KingdomA fish-eating spinosaur whose teeth were first thought to be a crocodile's.
• Sulaimanisaurus Cretaceous · Herbivore · Pakistan (Asia)A fragmentary titanosaur from the Sulaiman Range; its status as a valid genus is uncertain.
• Supersaurus Jurassic · Herbivore · USA (North America)Possibly the longest dinosaur of all, a diplodocid longer than a blue whale.
• Suskityrannus Cretaceous · Carnivore · USA (New Mexico)A small, slender tyrannosaur from before the group grew to giant size.
• Suuwassea Jurassic · Herbivore · USA (Montana)A medium-sized, short-necked sauropod from the Jurassic of North America.
• Suzhousaurus Cretaceous · Herbivore · China (Asia)A large, big-bellied, feathered plant-eating therizinosaur.
• Syntarsus Jurassic · Carnivore · The United StatesSyntarsus is a predatory theropod dinosaur known from fossils found in the United States. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.

T

• Tachiraptor Jurassic · Carnivore · Venezuela (South America)A small early predator and one of the first dinosaurs found in Venezuela.
• Talarurus Cretaceous · Herbivore · Mongolia (Asia)A wide-bodied armoured dinosaur with a stiff, club-tipped tail.
• Talenkauen Cretaceous · Herbivore · Argentina (South America)A slender plant-eater with thin plates along its ribs.
• Taleta Cretaceous · Herbivore · MoroccoTaleta is a duck-billed plant-eating dinosaur known from fossils found in Morocco. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Talos Cretaceous · Carnivore · USA (Utah)A bird-like troodontid that had survived an injury to its sickle-clawed foot.
• Tamarro Cretaceous · Carnivore · Spain (Europe)A small, fast troodontid from the early Cretaceous of Spain.
• Tambatitanis Cretaceous · Herbivore · Japan (Asia)A long-necked sauropod from Japan, nicknamed 'Tambaryu'.
• Tameryraptor Cretaceous · Carnivore · EgyptTameryraptor is a predatory theropod dinosaur known from fossils found in Egypt. It is classified within Theropoda · Carcharodontosauridae. Its full size, appearance and biology are not yet widely documented.
• Tangvayosaurus Cretaceous · Herbivore · Laos (Asia)A long-necked dinosaur and one of the few good sauropods known from Laos.
• Tanius Cretaceous · Herbivore · China (Asia)An early flat-headed duck-billed dinosaur from China.
• Tanycolagreus Jurassic · Carnivore · USA (Wyoming)A slender, long-legged predator from the Morrison rocks of Wyoming.
• Taohelong Cretaceous · Herbivore · China (Asia)A spiky-armored dinosaur, the first polacanthine known from Asia.
• Tapinosaurus Jurassic · Herbivore · FranceTapinosaurus is a long-necked plant-eating sauropod known from fossils found in France. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Tapuiasaurus Cretaceous · Herbivore · Brazil (South America)A titanosaur famous for a rare, beautifully complete skull.
• Tarascosaurus Cretaceous · Carnivore · France (Europe)One of the few short-faced abelisaur predators known from Europe.
• Tarbosaurus Cretaceous · Carnivore · Mongolia (Asia)Asia's answer to T. rex, the apex predator of Late Cretaceous Mongolia.
• Tarchia Cretaceous · Herbivore · Mongolia (Asia)One of the largest Asian ankylosaurs, with heavy armour and a big tail club.
• Tastavinsaurus Cretaceous · Herbivore · Spain (Europe)A large, robust sauropod from early Cretaceous Spain.
• Tatankacephalus Cretaceous · Herbivore · USA (Montana)An armored dinosaur known from a sturdy, bony-plated skull.
• Tatankaceratops Cretaceous · Herbivore · USA (South Dakota)A puzzling small horned dinosaur that may be a baby Triceratops.
• Tataouinea Cretaceous · Herbivore · Tunisia (Africa)A long-necked sauropod from Tunisia with air-filled hip bones.
• Tatisaurus Jurassic · Herbivore · China (Asia)One of the earliest armored plant-eaters, from early Jurassic China.
• Taupezia Cretaceous · Carnivore · The United KingdomTaupezia is a predatory theropod dinosaur known from fossils found in the United Kingdom. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Taurovenator Cretaceous · Carnivore · ArgentinaTaurovenator is a predatory theropod dinosaur known from fossils found in Argentina. It is classified within Theropoda · Carcharodontosauridae. Its full size, appearance and biology are not yet widely documented.
• Taveirosaurus Cretaceous · Herbivore · Portugal (Europe)A small plant-eater known only from a few tiny teeth.
• Tawa Triassic · Carnivore · USA (New Mexico)An early predatory dinosaur that helps reveal how the first theropods spread.
• Tazoudasaurus Jurassic · Herbivore · Morocco (Africa)One of the oldest known true sauropods, from Morocco.
• Technosaurus Triassic · Omnivore · The United StatesTechnosaurus is a early dinosaur relative known from fossils found in the United States. It is classified within Dinosauriformes · Silesauridae. Its full size, appearance and biology are not yet widely documented.
• Tehuelchesaurus Jurassic · Herbivore · Argentina (South America)A Jurassic sauropod that even preserved patches of skin texture.
• Telmatosaurus Cretaceous · Herbivore · Romania (Europe)A small, primitive duck-bill that shrank living on a prehistoric European island.
• Tendaguria Jurassic · Herbivore · Tanzania (Africa)An unusual sauropod from the rich Tendaguru beds of Tanzania.
• Tengrisaurus Cretaceous · Herbivore · RussiaTengrisaurus is a long-necked plant-eating sauropod known from fossils found in Russia. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Tenontosaurus Cretaceous · Herbivore · USA (North America)A medium plant-eater with an extremely long, stiff tail.
• Teratophoneus Cretaceous · Carnivore · USA (Utah)A short-snouted tyrannosaur from ancient Utah.
• Terminocavus Cretaceous · Herbivore · USA (New Mexico)A horned dinosaur in a sequence showing how frills evolved over time.
• Tethyshadros Cretaceous · Herbivore · Italy (Europe)A small duck-bill from Italy, nicknamed 'Antonio', that lived on a chain of islands.
• Texacephale Cretaceous · Herbivore · USA (Texas)A dome-headed dinosaur from the late Cretaceous of Texas.
• Texasetes Cretaceous · Herbivore · USA (Texas)A small armored nodosaur from the early Cretaceous of Texas.
• Thanatotheristes Cretaceous · Carnivore · Canada (Alberta)The oldest tyrannosaur known from Canada, with a long, deep, ridged snout.
• Thanos Cretaceous · Carnivore · Brazil (South America)A short-faced abelisaur predator from late Cretaceous Brazil.
• Thecodontosaurus Triassic · Herbivore · United Kingdom (Wales)A small early plant-eater, one of the very first dinosaurs ever named.
• Theiophytalia Cretaceous · Herbivore · USA (Colorado)An iguanodont named for the park where it was found.
• Therizinosaurus Cretaceous · Herbivore · Mongolia (Asia)A bizarre plant-eating theropod with a pot belly, small head, and enormous claws on its hands.
• Thescelosaurus Cretaceous · Herbivore · USA & CanadaA chunky, slow plant-eater that survived right up to the dinosaurs' final day.
• Thyreosaurus Jurassic · Herbivore · MoroccoThyreosaurus is a plated plant-eating dinosaur known from fossils found in Morocco. It is classified within Thyreophora · Stegosauridae. Its full size, appearance and biology are not yet widely documented.
• Tiamat Cretaceous · Herbivore · Brazil (South America)An early titanosaur relative, named in 2024 after a primordial goddess.
• Tianchisaurus Jurassic · Herbivore · China (Asia)An early armored dinosaur from Middle Jurassic China.
• Tiantaisaurus Cretaceous · Herbivore · ChinaTiantaisaurus is a long-clawed plant-eating theropod known from fossils found in China. It is classified within Theropoda · Therizinosauridae. Its full size, appearance and biology are not yet widely documented.
• Tianyulong Jurassic · Herbivore · China (Asia)A small plant-eater with a coat of long, bristly, hair-like filaments.
• Tianyuraptor Cretaceous · Carnivore · China (Asia)A slender, long-legged raptor with unusually short arms.
• Tianzhenosaurus Cretaceous · Herbivore · China (Asia)A club-tailed armored dinosaur known from a nearly complete skull.
• Tienshanosaurus Jurassic · Herbivore · China (Asia)A Jurassic sauropod from the Tianshan Mountains region of China.
• Tietasaura Cretaceous · Herbivore · BrazilTietasaura is a plant-eating ornithischian dinosaur known from fossils found in Brazil. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Timimus Cretaceous · Carnivore · AustraliaA swift, ostrich-like dinosaur from the polar forests of ancient Australia.
• Timurlengia Cretaceous · Carnivore · Uzbekistan (Asia)A horse-sized tyrannosaur that reveals how these predators evolved their clever brains.
• Titanoceratops Cretaceous · Herbivore · USA (New Mexico)A huge horned dinosaur with one of the biggest skulls of any land animal.
• Titanomachya Cretaceous · Herbivore · Argentina (South America)A small titanosaur from the very end of the age of dinosaurs, named in 2024.
• Titanosaurimanus Cretaceous · Herbivore · SpainTitanosaurimanus is a long-necked plant-eating sauropod known from fossils found in Spain. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Titanosaurus Cretaceous · Herbivore · IndiaTitanosaurus is a long-necked plant-eating sauropod known from fossils found in India. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Tlatolophus Cretaceous · Herbivore · Mexico (North America)A crested duck-bill whose comma-shaped crest resembled an Aztec symbol.
• Tochisaurus Cretaceous · Carnivore · Mongolia (Asia)A bird-like troodontid known mainly from a distinctive foot.
• Tonganosaurus Jurassic · Herbivore · China (Asia)An early long-necked sauropod from Sichuan, China.
• Tongnanlong Jurassic · Herbivore · ChinaTongnanlong is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Mamenchisauridae. Its full size, appearance and biology are not yet widely documented.
• Tongtianlong Cretaceous · Carnivore · China (Asia)A crested oviraptorid preserved in a sprawled, struggling pose.
• Tornieria Jurassic · Herbivore · Tanzania (Africa)An African cousin of Diplodocus with a long, slender body and whip-like tail.
• Torosaurus Cretaceous · Herbivore · USA (North America)A horned giant with one of the largest skulls of any land animal, frill and all.
• Torvosaurus Jurassic · Carnivore · USA & PortugalOne of the largest predators of the Jurassic, with long arms and big thumb claws.
• Tototlmimus Cretaceous · Omnivore · MexicoTototlmimus is a lightly-built ostrich-like dinosaur known from fossils found in Mexico. It is classified within Theropoda · Ornithomimidae. Its full size, appearance and biology are not yet widely documented.
• Tralkasaurus Cretaceous · Carnivore · Argentina (South America)A small short-faced abelisaur predator from Patagonia.
• Transylvanosaurus Cretaceous · Herbivore · Romania (Europe)A small plant-eater from the island world of late Cretaceous Romania.
• Tratayenia Cretaceous · Carnivore · Argentina (South America)One of the largest megaraptors, a top predator of southern South America.
• Traukutitan Cretaceous · Herbivore · Argentina (South America)A large titanosaur from the Patagonia region of Argentina.
• Triceratops Cretaceous · Herbivore · North AmericaA heavily-built plant-eater famous for the three horns on its face and a huge bony frill behind its head, likely used for defense, display, and species recognition.
• Trierarchuncus Cretaceous · Carnivore · USA (Montana)One of the very last insect-eating alvarezsaurs before the extinction.
• Trigonosaurus Cretaceous · Herbivore · Brazil (South America)A titanosaur from the Triângulo Mineiro region of Brazil.
• Trinisaura Cretaceous · Herbivore · AntarcticaA small ornithopod and one of the first plant-eaters named from Antarctica.
• Triunfosaurus Cretaceous · Herbivore · BrazilTriunfosaurus is a long-necked plant-eating sauropod known from fossils found in Brazil. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Troodon Cretaceous · Carnivore · USA & CanadaA small, bird-like predator with large eyes and one of the biggest brains for its body size.
• Tsaagan Cretaceous · Carnivore · Mongolia (Asia)A close relative of Velociraptor, known from a well-preserved skull.
• Tsagantegia Cretaceous · Herbivore · Mongolia (Asia)A flat-snouted armored dinosaur from the Gobi Desert.
• Tsintaosaurus Cretaceous · Herbivore · China (Asia)A duck-billed dinosaur famous for a tall, forward-pointing 'unicorn' crest.
• Tuebingosaurus Triassic · Herbivore · Germany (Europe)A sturdy early plant-eater from late Triassic Germany, named in 2022.
• Tugulusaurus Cretaceous · Carnivore · China (Asia)A small, lightly built predator from northwestern China.
• Tuojiangosaurus Jurassic · Herbivore · China (Asia)A Chinese stegosaur with tall, pointed back plates and a spiked tail.
• Turanoceratops Cretaceous · Herbivore · Uzbekistan (Asia)A horned dinosaur that hints the big-horned ceratopsids began in Asia.
• Turiasaurus Jurassic · Herbivore · Spain (Europe)One of the largest dinosaurs ever found in Europe.
• Tylocephale Cretaceous · Herbivore · Mongolia (Asia)A bonehead dinosaur with one of the tallest skull domes of its group.
• Tyrannomimus Cretaceous · Omnivore · Japan (Asia)An early ostrich-dinosaur once mistaken for a tyrannosaur relative.
• Tyrannosaurus rex Cretaceous · Carnivore · North America (USA & Canada)One of the largest land predators that ever lived. T. rex had a massive skull balanced by a long, heavy tail, tiny two-fingered arms, and banana-sized serrated teeth built to crush bone.
• Tyrannotitan Cretaceous · Carnivore · Argentina (South America)A colossal predator related to Giganotosaurus, among the largest meat-eaters ever.

U

• Uberabatitan Cretaceous · Herbivore · Brazil (South America)The largest titanosaur from the Bauru region of Brazil.
• Udanoceratops Cretaceous · Herbivore · Mongolia (Asia)One of the largest of the small, hornless frilled dinosaurs.
• Udelartitan Cretaceous · Herbivore · UruguayUdelartitan is a long-necked plant-eating sauropod known from fossils found in Uruguay. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Ugrunaaluk Cretaceous · Herbivore · The United StatesUgrunaaluk is a duck-billed plant-eating dinosaur known from fossils found in the United States. It is classified within Ornithopoda · Hadrosauridae. Its full size, appearance and biology are not yet widely documented.
• Ulughbegsaurus Cretaceous · Carnivore · Uzbekistan (Asia)A shark-toothed apex predator that towered over local tyrannosaurs.
• Unaysaurus Triassic · Herbivore · Brazil (South America)An early plant-eater closely related to Europe's Plateosaurus.
• Unenlagia Cretaceous · Carnivore · Argentina (South America)A bird-like raptor whose arms could fold away like a bird's wings.
• Unescoceratops Cretaceous · Herbivore · Canada (Alberta)A small, frilled plant-eater without large horns.
• Unquillosaurus Cretaceous · Carnivore · ArgentinaUnquillosaurus is a predatory theropod dinosaur known from fossils found in Argentina. It is classified within Theropoda · Carcharodontosauridae. Its full size, appearance and biology are not yet widely documented.
• Urbacodon Cretaceous · Carnivore · Uzbekistan (Asia)A bird-like troodontid from Central Asia with finely serrated teeth.
• Uriash Cretaceous · Herbivore · RomaniaUriash is a long-necked plant-eating sauropod known from fossils found in Romania. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Utahceratops Cretaceous · Herbivore · USA (Utah)A large horned dinosaur with short brow horns that flared out sideways.
• Utahraptor Cretaceous · Carnivore · USA (Utah)The largest known raptor, a heavily-built relative of Velociraptor armed with huge sickle claws.
• Uteodon Jurassic · Herbivore · USA (Utah)A plant-eating ornithopod from the Morrison rocks of Utah.

V

• Vagaceratops Cretaceous · Herbivore · Canada (Alberta)A horned dinosaur with a straight-edged frill topped by small spikes.
• Vahiny Cretaceous · Herbivore · Madagascar (Africa)A rare second kind of titanosaur from late Cretaceous Madagascar.
• Valdosaurus Cretaceous · Herbivore · United KingdomA small, fast-running plant-eater from southern England.
• Vallibonavenatrix Cretaceous · Carnivore · Spain (Europe)The first spinosaur skeleton described from Spain.
• Variraptor Cretaceous · Carnivore · France (Europe)A sickle-clawed raptor from southern France.
• Vayuraptor Cretaceous · Carnivore · Thailand (Asia)A lightly built, speedy predator from Thailand.
• Vectaerovenator Cretaceous · Carnivore · United KingdomA predator whose bones were full of air sacs, like a bird's.
• Vectidromeus Cretaceous · Herbivore · United KingdomA small, speedy plant-eater from the Isle of Wight, named in 2023.
• Vectipelta Cretaceous · Herbivore · United KingdomAn armored dinosaur from the Isle of Wight, named in 2023.
• Vectiraptor Cretaceous · Carnivore · United KingdomA robust, powerful raptor from the Isle of Wight.
• Vegavis Cretaceous · Carnivore · AntarcticaA duck-like bird that lived in Antarctica at the very end of the dinosaur age.
• Velafrons Cretaceous · Herbivore · Mexico (North America)A crested duck-billed dinosaur from Mexico, known from a young individual.
• Velociraptor Cretaceous · Carnivore · Mongolia & China (Asia)A small, fast, feathered predator with a large curved sickle-claw on each foot, used to pin down prey. Far smaller and bird-like compared to its Hollywood portrayal.
• Velocisaurus Cretaceous · Carnivore · Argentina (South America)A small, lightly built running predator with slender legs.
• Venenosaurus Cretaceous · Herbivore · USA (Utah)A sauropod named after the Poison Strip rocks where it was found.
• Vespersaurus Cretaceous · Carnivore · Brazil (South America)A small desert predator that walked on a single main toe, like a horse.
• Veterupristisaurus Jurassic · Carnivore · Tanzania (Africa)The oldest known carcharodontosaur, from the Jurassic of Tanzania.
• Viavenator Cretaceous · Carnivore · Argentina (South America)A short-faced abelisaur predator from Patagonia.
• Vitakridrinda Cretaceous · Carnivore · Pakistan (Asia)One of the few predatory dinosaurs named from Pakistan, known from fragmentary remains and poorly understood.
• Vitakrisaurus Cretaceous · Carnivore · Pakistan (Asia)A small, poorly-known predator from Balochistan, possibly the same animal as Vitakridrinda.
• Vitosaura Cretaceous · Carnivore · ArgentinaVitosaura is a predatory theropod dinosaur known from fossils found in Argentina. It is classified within Theropoda · Abelisauridae. Its full size, appearance and biology are not yet widely documented.
• Volgatitan Cretaceous · Herbivore · Russia (Europe)An early titanosaur known from backbones found along the Volga River.
• Volkheimeria Jurassic · Herbivore · Argentina (South America)A Middle Jurassic sauropod from Patagonia.
• Vouivria Jurassic · Herbivore · France (Europe)The earliest known member of the brachiosaur family.
• Vulcanodon Jurassic · Herbivore · Zimbabwe (Africa)One of the earliest true sauropods, a stepping stone toward the giant long-necks.

W

• Wakinyantanka Cretaceous · Carnivore · The United StatesWakinyantanka is a predatory theropod dinosaur known from fossils found in the United States. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Walgettosuchus Cretaceous · Carnivore · AustraliaA predator known from a single opalised tail bone from Lightning Ridge.
• Wamweracaudia Jurassic · Herbivore · Tanzania (Africa)A long-necked sauropod from the famous Tendaguru beds of Tanzania.
• Wannanosaurus Cretaceous · Herbivore · China (Asia)One of the smallest and most primitive flat-headed bone-heads.
• Weewarrasaurus Cretaceous · Herbivore · AustraliaA small plant-eater known from a jawbone turned to shimmering opal.
• Wellnhoferia Jurassic · Carnivore · Germany (Europe)A close relative of Archaeopteryx with a slightly shorter tail.
• Wendiceratops Cretaceous · Herbivore · Canada (Alberta)A horned dinosaur with a frill ringed by curling, hook-like horns.
• Wiehenvenator Jurassic · Carnivore · Germany (Europe)One of the largest predators of Jurassic Europe, nicknamed the 'Monster of Minden'.
• Willinakaqe Cretaceous · Herbivore · Argentina (South America)A South American duck-bill known from many individuals.
• Wintonotitan Cretaceous · Herbivore · AustraliaA long-necked Australian sauropod nicknamed 'Clancy'.
• Wudingloong Jurassic · Herbivore · ChinaWudingloong is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Wuerhosaurus Cretaceous · Herbivore · China (Asia)One of the last of the stegosaurs, with low, rounded back plates.
• Wulagasaurus Cretaceous · Herbivore · China (Asia)A flat-headed duck-bill from the far northeast of China.
• Wulatelong Cretaceous · Omnivore · China (Asia)A beaked oviraptorid from Inner Mongolia, China.
• Wulong Cretaceous · Carnivore · China (Asia)A small, fully feathered raptor known from a beautifully complete young skeleton.

X

• Xenoceratops Cretaceous · Herbivore · Canada (Alberta)One of the oldest known large horned dinosaurs of North America.
• Xenoposeidon Cretaceous · Herbivore · United KingdomA sauropod known from a single, very unusual backbone.
• Xenotarsosaurus Cretaceous · Carnivore · Argentina (South America)A short-faced abelisaur predator with unusually fused ankle bones.
• Xenovenator Cretaceous · Carnivore · The United StatesXenovenator is a predatory theropod dinosaur known from fossils found in the United States. It is classified within Theropoda · Troodontidae. Its full size, appearance and biology are not yet widely documented.
• Xiangyunloong Jurassic · Herbivore · ChinaXiangyunloong is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Xianshanosaurus Cretaceous · Herbivore · ChinaXianshanosaurus is a long-necked plant-eating sauropod known from fossils found in China. It is classified within Sauropoda · Euhelopodidae. Its full size, appearance and biology are not yet widely documented.
• Xiaosaurus Jurassic · Herbivore · China (Asia)A small, swift plant-eater from Middle Jurassic China.
• Xiaotingia Jurassic · Carnivore · China (Asia)A tiny, feathered, bird-like dinosaur very close to the origin of birds.
• Xingtianosaurus Cretaceous · Omnivore · ChinaXingtianosaurus is a beaked, feathered dinosaur known from fossils found in China. It is classified within Theropoda · Caudipteridae. Its full size, appearance and biology are not yet widely documented.
• Xingxiulong Jurassic · Herbivore · China (Asia)An early plant-eater that sometimes reared up onto two legs.
• Xinjiangovenator Cretaceous · Carnivore · China (Asia)A small predator known from a leg from northwestern China.
• Xinjiangtitan Jurassic · Herbivore · China (Asia)A colossal sauropod with one of the longest necks of any known animal.
• Xiongguanlong Cretaceous · Carnivore · China (Asia)A mid-sized transitional tyrannosaur, between the tiny early ones and the later giants.
• Xixianykus Cretaceous · Carnivore · China (Asia)A tiny, fast-running insect-eater from central China.
• Xixiasaurus Cretaceous · Carnivore · China (Asia)A bird-like troodontid with a long snout and many small teeth.
• Xixiposaurus Jurassic · Herbivore · China (Asia)An early long-necked plant-eater from Yunnan, China.
• Xiyunykus Cretaceous · Carnivore · ChinaXiyunykus is a predatory theropod dinosaur known from fossils found in China. It is classified within Theropoda · Alvarezsauridae. Its full size, appearance and biology are not yet widely documented.
• Xuanhanosaurus Jurassic · Carnivore · China (Asia)A predator with strong, robust arms for a meat-eating dinosaur.
• Xuanhuaceratops Jurassic · Herbivore · China (Asia)One of the most primitive known horned dinosaurs, parrot-beaked and tiny.
• Xunmenglong Cretaceous · Carnivore · ChinaXunmenglong is a predatory theropod dinosaur known from fossils found in China. It is classified within Theropoda · Compsognathidae. Its full size, appearance and biology are not yet widely documented.
• Xuwulong Cretaceous · Herbivore · ChinaXuwulong is a plant-eating ornithischian dinosaur known from fossils found in China. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.

Y

• Yamaceratops Cretaceous · Herbivore · Mongolia (Asia)A small, frill-less early horned dinosaur named after a Buddhist guardian deity.
• Yamanasaurus Cretaceous · Herbivore · Ecuador (South America)A small armored titanosaur, the first dinosaur ever named from Ecuador.
• Yamatosaurus Cretaceous · Herbivore · Japan (Asia)A primitive duck-bill that reveals how hadrosaurs evolved their chewing.
• Yanbeilong Cretaceous · Herbivore · ChinaYanbeilong is a plated plant-eating dinosaur known from fossils found in China. It is classified within Thyreophora · Stegosauridae. Its full size, appearance and biology are not yet widely documented.
• Yandusaurus Jurassic · Herbivore · China (Asia)A small, fast plant-eater from the rich Sichuan fossil beds.
• Yangchuanosaurus Jurassic · Carnivore · China (Asia)A large apex predator of Jurassic China, similar in build to Allosaurus.
• Yaverlandia Cretaceous · Carnivore · The United KingdomYaverlandia is a predatory theropod dinosaur known from fossils found in the United Kingdom. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Yehuecauhceratops Cretaceous · Herbivore · Mexico (North America)A small horned dinosaur from the deserts of northern Mexico.
• Yeneen Cretaceous · Herbivore · ArgentinaYeneen is a long-necked plant-eating sauropod known from fossils found in Argentina. It is classified within Sauropoda · Sauropodomorpha. Its full size, appearance and biology are not yet widely documented.
• Yezosaurus Cretaceous · Carnivore · JapanYezosaurus is a predatory theropod dinosaur known from fossils found in Japan. It is classified within Theropoda · Tyrannosauridae. Its full size, appearance and biology are not yet widely documented.
• Yi Jurassic · Carnivore · China (Asia)A tiny, strange dinosaur with bat-like membrane wings instead of feathered ones.
• Yibinosaurus Jurassic · Herbivore · China (Asia)An early long-necked sauropod from Sichuan, China.
• Yimenosaurus Jurassic · Herbivore · China (Asia)A large early plant-eater from Yunnan, China.
• Yingshanosaurus Jurassic · Herbivore · China (Asia)A plated dinosaur with wing-like spikes on its shoulders.
• Yinlong Jurassic · Herbivore · China (Asia)The earliest and most primitive known horned dinosaur, a small two-legged plant-eater.
• Yixianosaurus Cretaceous · Carnivore · China (Asia)A small feathered dinosaur with unusually long hands.
• Yizhousaurus Jurassic · Herbivore · China (Asia)An early sauropod relative known from a beautifully complete skull.
• Yongjinglong Cretaceous · Herbivore · China (Asia)A long-necked sauropod from northwestern China known from a young individual.
• Ypupiara Cretaceous · Carnivore · Brazil (South America)A South American raptor whose original fossils were tragically lost in a museum fire.
• Yuanmouraptor Jurassic · Carnivore · ChinaYuanmouraptor is a predatory theropod dinosaur known from fossils found in China. It is classified within Theropoda · Metriacanthosauridae. Its full size, appearance and biology are not yet widely documented.
• Yuanmousaurus Jurassic · Herbivore · China (Asia)A large long-necked sauropod from the Middle Jurassic of Yunnan.
• Yuanyanglong Cretaceous · Omnivore · China (Asia)An early ostrich-dinosaur from China, named in 2024.
• Yueosaurus Cretaceous · Herbivore · China (Asia)The southernmost small plant-eater known from China.
• Yulong Cretaceous · Omnivore · China (Asia)A small beaked oviraptorid known from some of the tiniest, best-preserved baby dinosaur skeletons.
• Yunganglong Cretaceous · Herbivore · ChinaYunganglong is a plant-eating ornithischian dinosaur known from fossils found in China. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Yunmenglong Cretaceous · Herbivore · China (Asia)A long-necked sauropod from the Henan province of China.
• Yunnanosaurus Jurassic · Herbivore · China (Asia)An early long-necked plant-eater with self-sharpening, spoon-shaped teeth.
• Yunyangosaurus Jurassic · Carnivore · ChinaYunyangosaurus is a predatory theropod dinosaur known from fossils found in China. It is classified within Theropoda. Its full size, appearance and biology are not yet widely documented.
• Yurgovuchia Cretaceous · Carnivore · USA (Utah)A wolf-sized raptor with a stiffened, agile tail.
• Yutyrannus Cretaceous · Carnivore · China (Asia)A large early tyrannosaur whose body was covered in shaggy, hair-like feathers.
• Yuxisaurus Jurassic · Herbivore · China (Asia)The first well-preserved armored dinosaur from early Jurassic Asia, named in 2022.
• Yuzhoulong Jurassic · Herbivore · China (Asia)A sauropod from the Chongqing region of China, named in 2023.

Z

• Zalmoxes Cretaceous · Herbivore · Romania (Europe)A dwarf, robust plant-eater from the prehistoric islands of Romania.
• Zanabazar Cretaceous · Carnivore · Mongolia (Asia)One of the largest troodontids, a big-brained, bird-like predator.
• Zapalasaurus Cretaceous · Herbivore · Argentina (South America)A long-necked, comb-toothed sauropod from early Cretaceous Patagonia.
• Zapsalis Cretaceous · Carnivore · CanadaZapsalis is a predatory theropod dinosaur known from fossils found in Canada. It is classified within Theropoda · Dromaeosauridae. Its full size, appearance and biology are not yet widely documented.
• Zaraapelta Cretaceous · Herbivore · Mongolia (Asia)A club-tailed armored dinosaur with especially ornate head armor.
• Zavacephale Cretaceous · Herbivore · MongoliaZavacephale is a plant-eating ornithischian dinosaur known from fossils found in Mongolia. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Zby Jurassic · Herbivore · Portugal (Europe)A giant sauropod with one of the shortest names of any dinosaur.
• Zephyrosaurus Cretaceous · Herbivore · USA (Montana)A small, speedy plant-eater built for quick escapes.
• Zhanghenglong Cretaceous · Herbivore · China (Asia)A transitional duck-bill that bridges iguanodonts and true hadrosaurs.
• Zhejiangosaurus Cretaceous · Herbivore · China (Asia)An armored nodosaur from the Zhejiang province of China.
• Zhenyuanlong Cretaceous · Carnivore · China (Asia)A large raptor with big, beautifully preserved wings of feathers.
• Zhongjianosaurus Cretaceous · Carnivore · China (Asia)One of the smallest raptors, a tiny four-winged microraptorine.
• Zhuchengceratops Cretaceous · Herbivore · China (Asia)A frilled plant-eater from the rich bonebeds of Zhucheng, China.
• Zhuchengtitan Cretaceous · Herbivore · China (Asia)A stocky titanosaur with an unusually broad upper arm bone.
• Zhuchengtyrannus Cretaceous · Carnivore · China (Asia)A giant Chinese tyrannosaur nearly the size of T. rex.
• Ziapelta Cretaceous · Herbivore · USA (New Mexico)An armoured dinosaur with a club tail and a spiky, ornate head.
• Zuniceratops Cretaceous · Herbivore · USA (New Mexico)An early horned dinosaur and one of the first known with brow horns.
• Zuolong Jurassic · Carnivore · China (Asia)An early coelurosaur predator from the Gobi region of China.
• Zuoyunlong Cretaceous · Herbivore · ChinaZuoyunlong is a plant-eating ornithischian dinosaur known from fossils found in China. It is classified within Ornithischia. Its full size, appearance and biology are not yet widely documented.
• Zupaysaurus Triassic · Carnivore · Argentina (South America)An early predatory dinosaur from the Triassic of Argentina, with a pair of head crests.
• Zuul Cretaceous · Herbivore · USA (Montana)A superbly preserved armoured dinosaur with a club tail, named after the monster from Ghostbusters.