A growing reference on specimens, minerals and the divisions of deep time — written and maintained by the site's admins.
70 entries · page 1 of 6
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Aepyornis maximus was a giant flightless bird from Madagascar known for its enormous size and m…
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Albertosaurus was a large tyrannosaurid theropod dinosaur from the Late Cretaceous known for it…
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A large carnivorous dinosaur that dominated North America during the Late Jurassic and was one …
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An extinct group of marine cephalopods with spiral shells that thrived for over 340 million yea…
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Anhanguera was a large flying pterosaur from the Early Cretaceous known for its long tooth-fill…
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A heavily armored herbivorous dinosaur with a powerful tail club that lived in North America du…
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Argentinosaurus was a gigantic titanosaur sauropod dinosaur from the Late Cretaceous, considere…
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Austroraptor was a large, slender dromaeosaurid theropod dinosaur from the Late Cretaceous know…
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Barbaridactylus was a large azhdarchid pterosaur from the Late Cretaceous known for its long wi…
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Baryonyx was a fish-eating spinosaurid theropod dinosaur from the Early Cretaceous known for it…
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Carnotaurus was a fast, horned abelisaurid theropod dinosaur from the Late Cretaceous known for…
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Coelophysis was a small, fast, early theropod dinosaur from the Late Triassic known for its sle…