Plesiosaurus

Definitions of plesiosaurus

noun
extinct marine reptile with a small head on a long neck a short tail and four paddle-shaped limbs; of the Jurassic and Cretaceous

synonyms: plesiosaur

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type of:
archosaur, archosaurian, archosaurian reptile
extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts

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