单词：Paleocene epoch
[网络] 一次辐射发生在古新世时代；新古世
Paleocene epoch的用法和样例：
例句
- Paleontological studies showed that modern avian groups probably first appeared in the Paleocene and experienced an explosive radiation in the early Cenozoic.古生物学研究表明，现生鸟类的最早出现是在古新世，而爆发性辐射演化发生在新生代早期。
- Paleocene古新世
单词：Paleocene epoch 相关文章
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It is not difficult to imagine a world short of ambition. It would probably be a kinder world: with out demands, without abrasions, without disappointments. People would have time for reflection. Such work as they did would not be for themselves but
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