Any of various extinct flying reptiles of the order Pterosauria, including the pterodactyls, of the Jurassic and Cretaceous periods, characterized by wings consisting of a flap of skin supported by the very long fourth digit on each forelimb.

• 翼龙任一种已灭绝的翼龙目能飞行的爬行动物，包括翼手龙，它们生活在侏罗纪和白垩纪之间的那段时期，翅膀由一块由每个前肢中非常长的脚趾支撑的皮构成