cot·y·lo·saur
(kŏt′l-ə-sôr′)n. Any of various large reptilelike extinct tetrapods of the Carboniferous and Permian Periods, traditionally placed in the order Cotylosauria.
[Greek kotulē, hollow object, socket + Greek sauros, lizard.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
cotylosaur
(ˈkɒtɪləˌsɔː) n (Animals) any of various members of the extinct order of primitive and massive reptiles known as Cotylosauria, which lived between the Carboniferous and Triassic ages
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
cot•y•lo•saur
(ˈkɒt l əˌsɔr)
n. any reptile of the extinct order Cotylosauria, comprising heavy-bodied splay-limbed forms that arose during the Pennsylvanian Period and that include the ancestors of all other reptiles.
[1900–05; < New Latin
Cotylosauria < Greek
kotýl(ē) socket, cup + New Latin
-o- -o- +
-sauria; see
-saur,
-ia]
cot`y•lo•sau′ri•an, adj.
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