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单词 Palaeogene
释义
Palaeogene

Biology
  • The older of the two geological periods of the Cenozoic era, consisting of the Palaeocene, Eocene, and Oligocene epochs. The Palaeogene began 66 million years ago and lasted until the start of the Neogene period, 23 million years ago. It thus corresponds approximately to the first two-thirds of the Tertiary period, a division that is no longer officially recognized.


Geology and Earth Sciences
  • The earlier of the two periods which comprise the Cenozoic era, preceded by the Cretaceous, followed by the Neogene, and dated at 65.5–23.03 Ma ago (Int. Commission on Stratigraphy, 2004). The Palaeogene period is subdivided into the Palaeocene, Eocene, and Oligocene epochs.

    http://www.geologypage.com/2014/04/paleogene-period.html The Palaeogene Period.


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