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Any of various extinct flying reptiles of the group Pterosauria, including the pterodactyls, of the Mesozoic Era, characterized by wings consisting of a membrane of skin extending from the side of the body to the very long fourth digit of the forelimb.
[From New Latin Pterosauria, order name : Greek pteron, feather, wing; see -pter + Greek sauros, lizard.]
any extinct flying reptile of the Jurassic and Cretaceous order Pterosauria characterized by membranous wings supported by one elongated finger on each hand.
[1860–65; < New Latin Pterosauria]
Any of various extinct, flying reptiles of the Jurassic and Cretaceous Periods with wings consisting of a flap of skin supported by an elongated fourth digit on each forelimb. Pterosaurs had wingspans ranging from less than a foot (0.3 meter) to close to 50 feet (15.2 meters).
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|Noun||1.||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|
archosaur, archosaurian, archosaurian reptile - extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts
pterodactyl - extinct flying reptile