pelycosaur

pelycosaur
/pel"i keuh sawr'/, n.
any of a group of large primitive reptiles belonging to the extinct order Pelycosauria, abundant in North America and Europe during the Permian Period, often having a tall spinal sail.
[ < NL Pelycosauria (1878), equiv. to Gk pelyk-, s. of pélyx wooden bowl, cup (taken as meaning PELVIS, parallel to the NL sense of L pelvis) + -o- -O- + saûr(os) -SAUR + NL -ia -IA; so named from the peculiar form of the ischium in such reptiles]

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Universalium. 2010.

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  • pelycosaur — pel·y·co·saur …   English syllables

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