"For the Holocene, dates are relative to the year 2000 (e.g. Greenlandian began 11,700 years before 2000). For the beginning of the Northgrippian a date of ...
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8,236 years before 2000 has been set. The Meghalayan has been set to begin 4,250 years before 2000.
´Chibanian´ and ´Tarantian´ are informal, unofficial names proposed to replace the equally 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." - (en.wikipedia.org 26.11.2019)
