Plesiosaur — synonyms, definition
1. plesiosaur (Noun)
1 synonym
plesiosaurus
1 definition
plesiosaur (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.
3 types of
archosaur archosaurian archosaurian reptile
1 part of
genus Plesiosaurus