| Meaning | A large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts. |
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| Synonym | Archosauria |
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| Member of | Reptilia, class Reptilia | Class of cold-blooded air-breathing vertebrates with completely ossified skeleton and a body usually covered with scales or horny plates |
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| Members | Crocodylia, order Crocodylia, Crocodilia, order Crocodilia | crocodiles |
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| Ichthyosauria, order Ichthyosauria | Extinct marine reptiles |
| Ornithischia, order Ornithischia | Extinct terrestrial / terrestrial reptiles having bird-like pelvises |
| Proterochampsa, genus Proterochampsa | Early archosaurian carnivore |
| Pterosauria, order Pterosauria | Extinct flying reptiles |
| Saurischia, order Saurischia | Extinct terrestrial / terrestrial reptiles |
| Sauropterygia, order Sauropterygia | Extinct marine reptiles |
| Saurosuchus, genus Saurosuchus | Early archosaurian carnivore |
| Thecodontia, order Thecodontia | Extinct terrestrial / terrestrial reptiles having teeth set in sockets |
| archosaur, archosaurian, archosaurian reptile | Extinct reptiles including |
| Broader | class | (biology) a taxonomic group containing one or more orders |
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| Catalan | Archosauria, Arcosaure |
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