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Era

Oligocene

Phanerozoic

The third and youngest epoch of the Paleogene period, spanning 33.9 million to about 23 million years ago and closing out the period. Global cooling continued through the Oligocene, and grasslands began expanding at the expense of forests across many continents. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/

Facts
Rank
Epoch 1
Start (Million Years Ago)
33.9 1
End (Million Years Ago)
23.04 1
Connections

Anticipated By

Eocene, Eras

Has Geologic Rank

Geologic Epoch, Concepts

In Discipline

Geochronology, Disciplines
Sources
1. Paleogene (Wikipedia)
Wikimedia FoundationLead section
Quote, Lead section
The Paleogene Period (IPA: PAY-lee-ə-jeen, -⁠lee-oh-, PAL-ee-; also spelled Palaeogene or Palæogene) is a geologic period and system that spans 43 million years from the end of the Cretaceous Period 66 Ma (million years ago) to the beginning of the Neogene Period 23.04 Ma.
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