s/n15248269

Information
has gloss	(noun) a unit of geological time that is a subdivision of a period and is itself divided into ages epoch
lexicalization	eng: epoch
subclass of	(noun) the time of the physical formation and development of the earth (especially prior to human history) geologic time, geological time
has instance	(noun) approximately the last 10,000 years Holocene, Holocene epoch, Recent epoch, Recent
has instance	(noun) from two million to 11 thousand years ago; extensive glaciation of the northern hemisphere; the time of human evolution Glacial epoch, Pleistocene, Pleistocene epoch
has instance	(noun) from 13 million to 2 million years ago; growth of mountains; cooling of climate; more and larger mammals Pliocene, Pliocene epoch
has instance	(noun) from 25 million to 13 million years ago; appearance of grazing mammals Miocene epoch, Miocene
has instance	(noun) from 40 million to 25 million years ago; appearance of sabertoothed cats Oligocene, Oligocene epoch
has instance	(noun) from 58 million to 40 million years ago; presence of modern mammals Eocene epoch, Eocene
has instance	(noun) from 63 million to 58 million years ago; appearance of birds and earliest mammals Paleocene, Paleocene epoch

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part of	(noun) a unit of geological time during which a system of rocks formed; "ganoid fishes swarmed during the earlier geological periods" period, geological period
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similar	e/Epoch (geology)
similar	e/Epoch (reference date)