See also: oligocene and Oligocène

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Etymology edit

From German Oligozän (originally spelt Oligocän, coined in 1854). By surface analysis, oligo- +‎ -cene.

Adjective edit

Oligocene (not comparable)

  1. (geology) Of a geologic epoch within the Paleogene period from about 34 to 23 million years ago; marked by the rapid evolution in a warm climate.

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Proper noun edit

Oligocene

  1. (geology) The Oligocene epoch.

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