What is the meaning of pelycosaur?

noun

  • Large primitive reptile having a tall spinal sail; of the Permian or late Paleozoic in Europe and North America. .
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). pelycosaur. Retrieved September 24, 2026, from http://smartdefine.org/pelycosaur/definitions/1196159
ChicagoWordNet. 2010. "pelycosaur" http://smartdefine.org/pelycosaur/definitions/1196159 (accessed September 24, 2026).
HarvardWordNet 2010, pelycosaur, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/pelycosaur/definitions/1196159>.
MLAWordNet. "pelycosaur" 23 October 2010. Web. 24 September 2026. <http://smartdefine.org/pelycosaur/definitions/1196159>