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Related articles:
Bipedalism
Bird
Crocodile
Crocodilia
Dinosaur
Pterosaur
Reptile
Synapsid
Triassic
Key terms: ancestors animal ankles archosauria archosaurs archosaurs first arrangement astragalus birds carrier conserving crocodiles crocodilians dinosaurs dominant earliest early archosaurs evolved extinction extinction event fairly femur fully hearts herbivores hip hip joints hip sockets faced lifestyle limbs lizards lungs mammals and birds metabolism oxygen permian phylogeny predators pterosaur reptiles s constraint skins sockets sprawling suture synapsids terrestrial therefore triassic vertebrates Search external links cited by footnotes on Wikipedia page Archosaur: |
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