Lexic.us

Definition of Mosasauria

1. n. pl. An order of large, extinct, marine reptiles, found in the Cretaceous rocks, especially in America. They were serpentlike in form and in having loosely articulated and dilatable jaws, with large recurved teeth, but they had paddlelike feet. Some of them were over fifty feet long. They are, essentially, fossil sea serpents with paddles. Called also Pythonomarpha, and Mosasauria.

Medical Definition of Mosasauria

1. An order of large, extinct, marine reptiles, found in the Cretaceous rocks, especially in America. They were serpentlike in form and in having loosely articulated and dilatable jaws, with large recurved tteth, but they had paddlelike feet. Some of them were over fifty feet long. They are, essentially, fossil sea serpents with paddles. Synonym: Pythonomarpha, and Mosasauria. Origin: NL. See Mosasaurus. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Mosasauria

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