Dinosaurs

Dinosaurs' fossilized bone skeletons in natural history museums: tyranosaurus rex, diplodicus, carnotaurus, archosaur, allosaurus, stegosaurus, ankylosaur, dorudon, comptosaurus, mamenchisaurus, dimetrodon, eryops, pteranodon, protostega, hydrosaur, duckbilled

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Dinosaurs, prehistoric animals: Allosaurus fragilis, from Colorado, is a large meat eating dinosaur of the Late Jurassic period, about 150 million years ago. National Museum of Natural History, Washington, DC, November 2006.

Dinosaur prehistoric animal allosaurus fragilis meat meat eater Colorado Late Jurassic Jurassic National Museum of Natural History Washington DC November 2006.138069355