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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Dinosaur skeleton: An archosaur, postosuchus kirkpatrickii, was a large meat-eating reptile member of the codont group of the late triassic period, 235-208 million years ago, before the dinosaurs. Postosuchus walked on all fours but could walk on its hind legs for short intervals. This is a composite skeleton, constructed from castings of bones from several museums. Los Angeles County Museum of Natural History, Los Angeles, California, January 2006.

archosaur postosuchus kirkpatrickii meateating reptile los angeles county museum of natural hist los angeles california january 2006 8653 dinosaur skeleton fossil prehistoric animal museum natural science nature prehistoric animal natural science history natural history