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|Noun||1.||order Pterosauria - extinct flying reptiles: pterosaurs|
animal order - the order of animals
Archosauria, subclass Archosauria - a large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts
flying reptile, pterosaur - an extinct reptile of the Jurassic and Cretaceous having a bird-like beak and membranous wings supported by the very long fourth digit of each forelimb