Eras
Oligocene
Phanerozoic
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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.
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Start (Million Years Ago) End (Million Years Ago) Cross-Tradition Connections
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1. Paleogene (Wikipedia)
Wikimedia FoundationEpochs tableQuote, Epochs table
The third and youngest series/epoch of the Paleogene, and lasted from 33.9 Ma to 23.03 Ma.
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