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paleocene

/ˈpæl.i.ə.siːn/

翻译: 古新世,地质年代中古近纪的第一个世,距今约6600万至5600万年,以鸟类和早期哺乳动物的出现为特征。

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noun

/ˈpæl.i.ə.siːn/C2formalscientific
  • zh古新世,地质年代中古近纪的第一个世,距今约6600万至5600万年,以鸟类和早期哺乳动物的出现为特征。

A proper noun referring to a geological epoch that lasted from about 66 to 56 million years ago, characterized by the appearance of birds and the earliest mammals.

不可数 · 专有名词

  1. Geological epochC2formalscientific

    The earliest epoch of the Paleogene Period, spanning from about 66 to 56 million years ago, following the extinction of the dinosaurs and marked by the appearance of birds and the earliest mammals.

    zh古新世

    • The Paleocene epoch saw the rapid diversification of mammals after the dinosaurs vanished.
    • Fossils from the Paleocene provide key insights into early bird evolution.
    • During the Paleocene, the Earth's climate was generally warm and tropical.
词形
  • paleocenes plural form
  • paleocenes' possessive plural form
  • paleocene's possessive singular form