Search Result for "oligocene epoch":
Wordnet 3.0

NOUN (1)

1. from 40 million to 25 million years ago; appearance of sabertoothed cats;
[syn: Oligocene, Oligocene epoch]


WordNet (r) 3.0 (2006):

Oligocene epoch n 1: from 40 million to 25 million years ago; appearance of sabertoothed cats [syn: Oligocene, Oligocene epoch]