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cot•y•lo•saur



Pronunciation: (kot'l-u-sôr"), [key]
n.
any member of the extinct order Cotylosauria, comprising heavy-bodied, splay-limbed, plant-eating reptiles that arose during the Carboniferous Period and that are considered to include the ancestors of all other reptiles.

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

cotyloidcotype

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