any of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbs
例句
用作名词(n.)
Given these factors, some areas have become a treasury of well preserved ichthyosaur fossils.当些因素存在时，某些地区就会变成一个充满保存完好的鱼龙化石的宝库。
The quality of preservation is outstanding, but what is even more impressive is the number of ichthyosaur fossils containing preserved embryos.它们的保存质量非常的好，但更令人称奇的是保存下来的育有胚胎的鱼龙化石数目。
