Pliocene(redirected from 2.4 million years ago)
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Of, relating to, or being the epoch of geologic time from 5.3 to 2.6 million years ago, the most recent epoch of the Tertiary Period. It is characterized by the appearance of distinctly modern animals and by the expansion of grasslands. See Table at geologic time.
The Pliocene Epoch.
(Geological Science) of, denoting, or formed in the last epoch of the Tertiary period, which lasted for three million years, during which many modern mammals appeared
(Geological Science) the Pliocene the Pliocene epoch or rock series
[C19: plio- + -cene, from Greek kainos recent]
1. noting or pertaining to an epoch of the Tertiary Period, occurring from ten million to two million years ago when mammalian life was proliferating and climatic cooling had begun.n.
2. the Pliocene Epoch or Series.
The fifth and last epoch of the Tertiary Period, from about 5 to 2 million years ago, characterized by the appearance of distinctly modern animals. See Chart at geologic time.
See also related terms for recent.
n → Pliozän nt
adj → pliozän