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Definition of Nothosaur
1. Noun. Extinct marine reptile with longer more slender limbs than plesiosaurs and less completely modified for swimming.
Generic synonyms: Archosaur, Archosaurian, Archosaurian Reptile
Group relationships: Genus Nothosaurus
Group relationships: Genus Nothosaurus
Definition of Nothosaur
1. Noun. Any of several extinct marine reptiles, of the order ''Nothosauroidea'', from the Triassic period ¹
¹ Source: wiktionary.com