单词 | pelycosaur |
释义 | pelycosaur (once / 5909656 pages) n WORD FAMILY pelycosaur USAGE EXAMPLESBy far the most famous pelycosaur is /Dimetrodon/, a 3m-long predator with a sail on its back. Forbes(Sep 30, 2014) On a new pelycosaur from the lower Permian of Oklahoma, and the origin of the family Caseidae. Fox, Richard C., Two New Pelycosaurs from the Lower...(2010) n large primitive reptile having a tall spinal sail; of the Permian or late Paleozoic in Europe and North America Hyper synapsid, synapsid reptile extinct reptile having a single pair of lateral temporal openings in the skull |
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