What is the meaning of Plesiosauria?

noun

WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). Plesiosauria. Retrieved September 21, 2026, from http://smartdefine.org/plesiosauria/definitions/1196178
ChicagoWordNet. 2010. "Plesiosauria" http://smartdefine.org/plesiosauria/definitions/1196178 (accessed September 21, 2026).
HarvardWordNet 2010, Plesiosauria, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/plesiosauria/definitions/1196178>.
MLAWordNet. "Plesiosauria" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/plesiosauria/definitions/1196178>
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