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: Duckbilled dinosaurs - hadrosaurs - were plant eaters who lived in groups. This one is 66 million years old and survived a battle with a tyranosaurus rex that left a scar midway back on its tail. It probably browsed/grazed on all four legs, but it could run on its hind legs if it had to. Lower right is skeleton of a triceratops head. Denver Museum of Nature and Science, December 2005.

duckbilled hadrosaur edmontosaurus duckbill plant eating triceratops 58651719 49858702 museum of nature and science denver colorado dinosaur skeleton fossil prehistoric animal museum natural science nature prehistoric animal natural science history natural history