What is the meaning of Ornithosauria?

(n.pl.) An order of extinct flying reptiles; -- called also Pterosauria.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). ornithosauria. Retrieved September 24, 2026, from http://smartdefine.org/ornithosauria/definitions/2039502
ChicagoWebster's. 2011. "ornithosauria" http://smartdefine.org/ornithosauria/definitions/2039502 (accessed September 24, 2026).
HarvardWebster's 2011, ornithosauria, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/ornithosauria/definitions/2039502>.
MLAWebster's. "ornithosauria" 27 May 2011. Web. 24 September 2026. <http://smartdefine.org/ornithosauria/definitions/2039502>