plesiosaurus

noun

1. extinct marine reptile with a small head on a long neck a short tail and four paddle-shaped limbs; of the Jurassic and Cretaceous
   Terjemahkan ke Indonesia sumber: wordnet30
2. A genus of large extinct marine reptiles, having a very long neck, a small head, and paddles for swimming. It lived in the Mesozoic age.
   Terjemahkan ke Indonesia sumber: webster1913