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ple•si•o•saur



Pronunciation: (plē'sē-u-sôr"), [key]
n.
any marine reptile of the extinct genus Plesiosaurus, from the Jurassic and Cretaceous periods, having a small head, a long neck, four paddlelike limbs, and a short tail.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

plerocercoidplessor
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