Search Result for "cenozoic era":
Wordnet 3.0

NOUN (1)

1. approximately the last 63 million years;
[syn: Cenozoic, Cenozoic era, Age of Mammals]



WordNet (r) 3.0 (2006):

Cenozoic era
    n 1: approximately the last 63 million years [syn: Cenozoic,
         Cenozoic era, Age of Mammals]