giant sea reptile from the Mezozoic, 1868, from Modern Latin (coined by E.D. Cope), from comb. form of Greek elasmos "metal plate" (from elan "to strike;" see elastic) + -saurus. So called from the caudal laminae and the great plate-bones.
双语例句
1. Elasmosaurus was not a dinosaur. It was a plesiosaur.
依拉丝莫龙不是恐龙, 它是蛇颈龙.
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2. Elasmosaurus had a small head. It had sharp teeth and a pointed tail.
