ichthyosaur

英

美

n.  （古生）鱼龙

复数：ichthyosaurs　

TOEFL

COCA.39869

英英释义

noun

• any of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbs

双语例句

• The ichthyosaur remains are found in black, bituminous marine shales deposited about 190 million years ago.
  人们在黑色的、含沥青的海洋页岩中发现了约19000年前沉积下来的鱼龙化石。
• 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。
• Given these factors, some areas have become a treasury of well-preserved ichthyosaur fossils.
  当这些因素存在时，某些地区就会变成一个充满保存完好的鱼龙化石的宝库。