archosaur: Quick Facts

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Facts

Also Known As	ruling reptile • Archosauria

Photos

Diagram showing evolutionary relationships among archosaurs, dinosaurs, modern crocodiles, the small dinosaur Troodon, the ancestral bird Archaeopteryx, and a modern chicken, with arrows tracing lineage from archosaurs to both crocodiles and birds.

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Topics

crurotarsan ornithosuchian Dinocephalosaurus Euparkeria thecodontian crocodile pterosaur dinosauromorph rauisuchid aetosaur herpetology lizard snake turtle 7 Questions About Lizards, Snakes, and Other Reptiles Answered ichthyosaur sauropterygian Why are reptiles cold-blooded?

Mute swan with cygnet. (birds)

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Sea otter (Enhydra lutris), also called great sea otter, rare, completely marine otter of the northern Pacific, usually found in kelp beds. Floats on back. Looks like sea otter laughing. saltwater otters

Animal Group Names

Lion (panthera leo)

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Young chimpanzee dressed in a shirt and sweater vest, scratching his head thinking. (primates)

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The bearded vulture (Gypaetus barbatus) is seen in Switzerland on December 2024

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