Miocene(redirected from 14 million years old)
Also found in: Thesaurus, Encyclopedia.
Of, relating to, or being the epoch of geologic time from about 23 to 5.3 million years ago, the fourth epoch of the Tertiary Period. It is characterized by the spread of grasses and grazing mammals. See Table at geologic time.
The Miocene Epoch.
(Geological Science) of, denoting, or formed in the fourth epoch of the Tertiary period, between the Oligocene and Pliocene epochs, which lasted for 19 million years
(Geological Science) the Miocene this epoch or rock series
[C19: from Greek meiōn less + -cene]
1. noting or pertaining to an epoch of the Tertiary Period, occurring from 25 million to 10 million years ago, when grazing mammals became widespread.n.
2. the Miocene Epoch or Series.
[1832; mio- (< Greek meíōn less) + -cene]
The fourth epoch of the Tertiary Period, from about 24 to 5 million years ago, characterized by the development of grasses and grazing mammals. See Chart at geologic time.
See also related terms for recent.