Paleocene

常見(jiàn)例句

用作名詞 (n.)

• Paleontological studies showed that modern avian groups probably first appeared in the Paleocene and experienced an explosive radiation in the early Cenozoic.
  古生物學(xué)研究表明，現(xiàn)生鳥(niǎo)類的最早出現(xiàn)是在古新世，而爆發(fā)性輻射演化發(fā)生在新生代早期。
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