CENOZOIC

Cenozoic

(adjective) of or relating to or denoting the Cenozoic era

Cenozoic, Cenozoic era, Age of Mammals

(noun) approximately the last 63 million years

Source: WordNet® 3.1

Etymology

Adjective

Cenozoic (not comparable)

(geology) Of or pertaining to the Cenozoic era.

Proper noun

Cenozoic

(geology) A geologic era within the Phanerozoic eon comprising the Paleogene and Neogene periods from about 65 million years ago to the present, when the continents moved to their current position and modern plants and animals evolved.

Source: Wiktionary

Ce`no*zo"ic, a. Etym: [Gr. (Geol.)

Definition: Belonging to the most recent division of geological time, including the tertiary, or Age of mammals, and the Quaternary, or Age of man. [Written also cænozoic, cainozoic, kainozoic.] See Geology.

Note: This word is used by many authors as synonymous with Tertiary, the Quaternary Age not being included.

Source: Webster’s Unabridged Dictionary 1913 Edition