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The Pliocene (/ ˈ p l aɪ. ə s iː n, ˈ p l aɪ. oʊ-/ PLY-ə-seen, PLY-oh-; [6] [7] also Pleiocene) [8] is the epoch in the geologic time scale that extends from 5.33 to 2.58 [9] million years ago (Ma). It is the second and most recent epoch of the Neogene Period in the Cenozoic Era. The Pliocene follows the Miocene Epoch and is followed by ...
The Pleistocene (/ ˈ p l aɪ s t ə ˌ s iː n,-s t oʊ-/ PLY-stə-seen, -stoh-; [4] [5] referred to colloquially as the Ice Age) is the geological epoch that lasted from c. 2.58 million to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations.
The Plio-Pleistocene is an informally described geological pseudo-period, which begins about 5 million years ago (Mya) and, drawing forward, combines the time ranges of the formally defined Pliocene and Pleistocene epochs—marking from about 5 Mya to about 12 kya.
The formation of 3 to 4 km (1.9 to 2.5 mi) thick ice sheets equate to a global sea level drop of about 120 m (390 ft) The Quaternary glaciation, also known as the Pleistocene glaciation, is an alternating series of glacial and interglacial periods during the Quaternary period that began 2.58 Ma (million years ago) and is ongoing.
The Earth is currently in an interglacial period called the Holocene epoch. [1] However, there is debate as to whether it is actually a separate epoch or merely an interglacial period within the Pleistocene epoch. [2] [3] Between 9,000 and 5,000 years ago there was a warm period called the Holocene climatic optimum.
This category contains events which happened in the Pleistocene, a division of the geologic time scale. See geologic time scale for information about its divisions and how they relate to each other. See also the preceding Category:Pliocene and the succeeding Category:Holocene
Uncovered in 1996 by workers at the Pipe Creek Junior limestone quarry, the sinkhole has yielded a diverse array of fossils from the Pliocene epoch, dating back five million years. Discoveries have been made there of the remains of camelids , bears , beavers , frogs , snakes , turtles , and several previously unknown species of rodents .
The Gauss–Matuyama reversal is a natural phenomenon that is frequently used as a boundary between the Pliocene and Pleistocene epochs, [1] marking the start of the Quaternary period, and is often used to date sediments.