Cambrian explosion

所屬欄目:英漢古生物學專業(yè)術語

Definition: The Cambrian explosion or Cambrian radiation was the relatively rapidappearance,over a period of many million years,of most major groups of complex animalsaround 530 million years ago,as found in the fossil record.寒武紀生命大爆發(fā)hán wǔ jì shēngmìng d ......(本文共 417 字 )     [閱讀本文] >>


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