You searched for: “cenozoic
Caenozoic, Cainozoic, Cenozoic (adjective) (not comparable)
The most recent division of geological time: The Caenozoic Era includes the tertiary, or "Age of Mammals", and the Quaternary, or "Age of Man".

During the Cenozoic period, which was about 63 million years ago, modern continents, glaciations, and the variety of mammals, birds, and plants were created.

Cenozoic (proper noun)
The youngest, or most recent, of the eras or major subdivisions of geologic time extending from the end of the Mesozoic Era to the present: The Cenozoic began about 65 million years ago during which modern plants and animals evolved.
Word Entries at Get Words: “cenozoic
cenozoic
The most recent geological era, extending from 65 million year ago, when the dinosaurs became extinct, to the present.

It is sometimes referred to as the "Age of Mammals"; its literal meaning comes from Greek, "recent life".

This entry is located in the following unit: Ocean and Deep Sea Terms (page 2)