A genus of extinct marine reptiles of the infraorder Plesiosauria, having a small head on a long neck, a short tail, and four large paddle-like…
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| 释义 | the world > animals > reptiles > extinct reptiles and dinosaurs > [noun] > order Sauropterygia > plesiosaurus (5) Plesiosaurus1821 A genus of extinct marine reptiles of the infraorder Plesiosauria, having a small head on a long neck, a short tail, and four large paddle-like… plesiosaur1839 Any of various extinct marine reptiles of the genus Plesiosaurus, the family Plesiosauridae, or the infraorder Plesiosauria, having a broad… sauropterygian1861 (a) adj. of or pertaining to the Sauropterygia (usually called Plesiosauria), an order of extinct marine reptiles in Owen's classification (Palæont.… plesiosaurian1869 A reptile of the order Plesiosauria; a plesiosaur. (In quot. 1869 figurative.) plesiosauroid1870 A member of the superfamily Plesiosauroidea; a long-necked plesiosaur. |
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