| pterosaur | <paleontology> A pterodactyl. Origin: Gr. Wind + a lizard. Source: Websters Dictionary (01 Mar 1998) |
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| pterosauria | <paleontology> An extinct order of flying reptiles of the Mesozoic age; the pterodactyls. Synonym: Pterodactyli, and Ornithosauria. The wings were formed, like those of bats, by a leathery expansion of the skin, principally supported by the greatly enlarged outer or " little" fingers of the hands. The American Cretaceous pterodactyls had no teeth. See: Pteranodontia, and Pterodactyl. Source: Websters Dictionary (01 Mar 1998) |
| pterosaurian | <paleontology> Of or pertaining to the Pterosauria. Source: Websters Dictionary (01 Mar 1998) |
| pterosaur | extinct flying reptile of the Jurassic and Cretaceous having a birdlike beak and membranous wings supported by the very long fourth digit of each forelimb |
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| pterosaur | extinct flying reptiles: pterosaurs |
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