1. (noun) a large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts

• subclass archosauria

1. (noun) a large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts

• archosaur
• archosaurian
• archosaurian reptile
• crocodilia
• crocodylia
• order crocodilia
• order crocodylia
• genus proterochampsa
• proterochampsa
• genus saurosuchus
• saurosuchus
• ichthyosauria
• order ichthyosauria
• order ornithischia
• ornithischia
• order pterosauria
• pterosauria
• order saurischia
• saurischia
• order sauropterygia
• sauropterygia
• order thecodontia
• thecodontia

1. (noun) a large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts

• class

1. (noun) a large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts

• class reptilia
• reptilia