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