noun
extinct marine reptiles: plesiosaurs; nothosaurs
• Syn: ↑order Sauropterygia
• Hypernyms: ↑animal order
• Member Holonyms: ↑Archosauria, ↑subclass Archosauria
• Member Meronyms: ↑Plesiosauria, ↑suborder Plesiosauria, ↑Nothosauria, ↑suborder Nothosauria
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Sauropterygia /sö-rop-tər-ijˈi-ə/ plural noun
(Gr pterygion a fin) an order of fossil reptiles, aquatic or amphibious, incl Plesiosaurus
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Main Entry: ↑saurian
Useful english dictionary. 2012.