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pterosaurextinct order of flying reptiles that flourished from 220 million-65 million years ago.
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pterosauran extinct flying reptile of the order Pterosauria from the Jurassic and Cretaceous periods e.g. pterodactyls. Pterosaurs had wings consisting of a flap of skin supported by the very long fourth finge [..]
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pterosaur(n) 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
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