Early Pleistocene

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Subdivisions of the Quaternary System
Age (Ma)
Quaternary Holocene 0 0.0117
Pleistocene 'Tarantian' 0.0117 0.126
'Chibanian' 0.126 0.781
Calabrian 0.781 1.80
Gelasian 1.80 2.58
Neogene Pliocene Piacenzian older
Subdivision of the Quaternary period
according to the ICS, as of 2017.[1] 'Chibanian' and 'Tarantian' are informal, unofficial names proposed to replace the also informal, unofficial 'Middle Pleistocene' and 'Upper Pleistocene' subseries/subepochs respectively.

In Europe and North America, the Holocene is subdivided into Preboreal, Boreal, Atlantic, Subboreal, and Subatlantic stages of the Blytt–Sernander time scale. There are many regional subdivisions for the Upper or Late Pleistocene; usually these represent locally recognized cold (glacial) and warm (interglacial) periods. The last glacial period ends with the cold Younger Dryas substage.

The Early Pleistocene (also known as the Lower Pleistocene) is a subepoch in the international geologic timescale or a subseries in chronostratigraphy, being the earliest or lowest subdivision of the Quaternary period/system and Pleistocene epoch/series. It spans the time between 2.588 ± 0.005 Ma (million years ago) and 0.781 ± 0.005 Ma.[2] The Early Pleistocene consists of the Gelasian and the Calabrian ages.[3]


  1. ^ Fan, Junxuan; Hou, Xudong. "International Chronostratigraphic Chart". International Commission on Stratigraphy. Retrieved February 11, 2018. 
  2. ^ "Formal subdivision of the Pleistocene Series/Epoch" http://quaternary.stratigraphy.org/definitions/pleistocenesubdivision/ Accessed 2014-02-09
  3. ^ "Early/Lower Pleistocene subepoch" http://fossilworks.org/bridge.pl?action=displayInterval&interval_no=924 Accessed 2014-02-09

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