A complete, alphabetical list of of every dinosaur that ever lived, as well as avian and aquatic reptiles and the primitive reptiles that preceded (and lived alongside) the dinosaurs.
A
Abelisaurus "Abel's lizard" has been recontructed from a single skull.
Acanthopholis No, it's not a city in Greece.
Achillobator This fierce raptor was discovered in modern-day Mongolia.
Aegyptosaurus Guess what country this dinosaur was found in?
Afrovenator One of the few carnivores ever to be dug up in northern Africa.
Alamosaurus No, it wasn't named after the Alamo, but it should have been.
Alaskacephale Guess what state this pachycephalosaur was found in?
Albertosaurus This carnivorous dinosaur was a close relative of T. Rex.
Alectrosaurus Few specimens of this "unmarried lizard" have been found.
Alioramus All we know about this tyrannosaur is based on a single skull.
Allosaurus One of the most common predators of the Jurassic era.
Alxasaurus An early relative of the bizarre Therizinosaurus.
Ampelosaurus One of the best-known of the armored titanosaurs.
Anatotitan This hadrosaur's name means "giant duck."
Anchisaurus One of the first dinosaurs ever to be dug up in the U.S.
Andesaurus This titanosaur rivaled Argentinosaurus in size.
Ankylosaurus The Cretaceous equivalent of a Sherman tank.
Anserimimus This "goose mimic" didn’t bear much of a resemblance.
Antarctopelta The first dinosaur fossil ever discovered in Antarctica.
Antarctosaurus This titanosaur may or may not have lived in Antarctica.
Antetonitrus Either a very late prosauropod, or a very early sauropod.
Anteosaurus This huge, crocodile-like reptile preceded the dinosaurs.
Anurognathus One of the smallest pterosaurs of prehistoric times.
Apatosaurus The dinosaur formerly known as Brontosaurus.
Appalachiosaurus One of the few dinosaurs ever to be found in Alabama.
Archaeopteryx This ancient, flying reptile was about the size of a modern pigeon.
Archaeornithomimus A likely ancestor of Ornithomimus.
Archelon A dinosaur-sized turtle of the late Cretaceous.
Argentinosaurus Possibly the largest herbivore that ever lived.
Aristonectes One of the last plesiosaurs left before the K/T extinction.
Astrodon The official state dinosaur of Maryland.
Atrociraptor This "cruel thief" wasn't as atrocious as its name implies.
Attenborosaurus Named after the documentarian David Attenborough.
Avimimus A particularly bird-like cousin of Oviraptor.
B
Bactrosaurus One of the earliest of the duck-billed dinosaurs.
Bambiraptor Yes, this tiny raptor was named after you-know-who.
Barapasaurus Probably the first of the giant sauropods.
Barosaurus An enormous plant-eater with a tiny head.
Baryonyx You wouldn't want to clip this dinosaur's claws.
Beipiaosaurus The only known feathered therizinosaur.
Bernissartia One of the smallest of all the Cretaceous crocodiles.
Biarmosuchus One of the most primitive of the "mammal-like reptiles."
Bonitasaura This titanosaur wasn't as beautiful as its name implies.
Brachiosaurus A giant, gentle, long-necked plant-eater.
Brachylophosaurus This duck-billed dinosaur's beak looked more like a parrot's.
Brachytrachelopan This sauropod had an unusually short neck.
Buitreraptor The oldest raptor ever discovered in South America.
C
Californosaurus Guess what state this ichthyosaur was discovered in?
Camarasaurus The most common sauropod of Jurassic North America.
Camelotia An early member of the line that evolved into sauropods.
Camptosaurus A close relative of Iguanodon.
Carcharodontosaurus Its name means "great white shark lizard." Impressed yet?
Carnotaurus The shortest arms of any meat-eater--and horns to match.
Casea This bland-looking pelycosaur's name is Greek for "cheese."
Caudipteryx A birdlike dinosaur that changed the views of paleontologists.
Centrosaurus Like a unicorn, this ceratopsian only had one horn.
Ceratosaurus This primitive carnivore is hard to classify.
Cetiosaurus Guess which creature this "whale lizard" was once mistaken for?
Charonosaurus This duck-billed dinosaur was much bigger than an elephant.
Chasmatosaurus One of the first archosaurs ever to be identified.
Chasmosaurus The only dinosaur that came with its own awning.
Chialingosaurus One of the earliest Asian stegosaurs.
Chimaerasuchus The first vegetarian crocodile ever to be discovered.
Chirostenotes This birdlike dinosaur has been known by three different names.
Chungkingosaurus This early stegosaur had some primitive characteristics.
Citipati This Mongolian theropod was a close relative of Oviraptor.
Coelophysis One of the most ancient dinosaurs ever to roam the earth.
Coelurus This tiny dinosaur was a close relative of Compsognathus.
Colepiocephale This thick-skulled dinosaur's name is Greek for "knucklehead."
Compsognathus The size of a chicken, but much meaner.
Conchoraptor This "conch thief" may have lunched on mollusks.
Confuciusornis Guess what country this proto-bird was discovered in?
Corythosaurus This "Corinthian-helmeted" dino had a distinctive mating call.
Crichtonsaurus This dinosaur was named after the author of Jurassic Park.
Cryolophosaurus This crested carnivore was once known as "Elvisaurus."
Cryptoclidus This mean-looking pliosaur was one of the biggest of all marine reptiles.
Cymbospondylus A very large--and very ancient--ichthyosaur.
Cynognathus Among the most mammal-like of all ancient reptiles.
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