pliosaur
/ˈplaɪəsɔː/noun
1- a plesiosaur with a short neck, large head, and massive toothed jaws上龙。
1.1
- Family Pliosauridae, Infraorder Plesiosauria: several genera, including Pliosaurus.上龙科, 蛇颈龙下目：数种, 包括上龙。
词源
mid 19th cent.: from modern Latin Pliosaurus (genus name)， from Greek pleiōn 'more' + sauros 'lizard' (because of its greater similarity to a lizard than the ichthyosaur).