1. 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.


  • archosaurian reptile
  • plesiosaurus
  • archosaur
  • archosaurian

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Sentences with plesiosaur

1. Adjective
Upcoming exhibits at the Glendive Dinosaur and Fossil Museum include stegosaurus, denversaurus, thescelosaurus, pachycephalosaurus and plesiosaur skeletons.