وسط حیاتی دور
For the Holocene, dates are relative to the year 2000 (e.g.
| Subdivisions of the Quaternary Period | ||||
|---|---|---|---|---|
| System/ Period | Series/ Epoch | Stage/ Age | Age | |
| Quaternary | Holocene | Meghalayan | 0 | 4,200 |
| Northgrippian | 4,200 | 8,200 | ||
| Greenlandian | 8,200 | 11,700 | ||
| Pleistocene | 'Upper' | 11,700 | 129سال | |
| Chibanian | 129ka | 774ka | ||
| Calabrian | 774ka | 1.80سال | ||
| Gelasian | 1.80Ma | 2.58Ma | ||
| Neogene | Pliocene | Piacenzian | 2.58Ma | 3.60Ma |
Notes and references Subdivision of the Quaternary Period according to the ICS, as of January 2020. Greenlandian began 11,700 years before 2000). For the beginning of the Northgrippian a date of 8,236 years before 2000 has been set. The Meghalayan has been set to begin 4,250 years before 2000. 'Tarantian' is an informal, unofficial name proposed for a stage/age to replace the equally informal, unofficial 'Upper Pleistocene' subseries/subepoch. 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. | ||||
وسط حیاتی دور (انگریزی: Pleistocene) یا پلسٹوسینی دور؛ ان دو ادوار میں سے قدیم تر دور جس میں عصر چہارم شامل تھا، جس کی خصوصیات تلچھٹی اور برفانی اور رکازی باقیات ہیں جن میں قدیم زمانے کی انواع بھی شامل ہیں
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