Oligocene

/ˈɑləɡoʊsin/

Oligocene

English Adj

Definition

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.

Etymology

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