Late Pleistocene
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Late Pleistocene

Subdivisions of the Quaternary System
System/
Period
Series/
Epoch
Stage/
Age
Age (Ma)
Quaternary Holocene Meghalayan 0 0.0042
Northgrippian 0.0042 0.0082
Greenlandian 0.0082 0.0117
Pleistocene 'Upper' 0.0117 0.129
Chibanian 0.129 0.774
Calabrian 0.774 1.80
Gelasian 1.80 2.58
Neogene Pliocene Piacenzian 2.58 3.60
Notes and references[1][2]
Subdivision of the Quaternary Period according to the ICS, as of May 2019.[1]

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 8,236 years before 2000 has been set.[2] The Meghalayan has been set to begin 4,250 years before 2000.[1]

'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.

Millennia:
Centuries:
  • 110th century BC
  • 109th century BC
  • 108th century BC
  • 107th century BC
  • 106th century BC
  • 105th century BC
  • 104th century BC
  • 103rd century BC
  • 102nd century BC
  • 101st century BC
Violet: Extent of the Alpine ice sheet in the Würm glaciation. Blue: Extent in earlier ice ages.

The Late Pleistocene is an unofficial age in the international geologic timescale in chronostratigraphy, also known as Upper Pleistocene from a stratigraphic perspective. It is intended to be the fourth division of the Pleistocene Epoch within the ongoing Quaternary Period. It is currently estimated to span the time between c. 129,000 and c. 11,700 years ago. The Late Pleistocene equates to the proposed Tarantian Age of the geologic time scale, preceded by the officially ratified Chibanian and succeeded by the officially ratified Greenlandian.[1] The estimated beginning of the Tarantian is the start of the Eemian interglacial period (Marine Isotope Stage 5).[3] It is held to end with the termination of the Younger Dryas, some 11,700 years ago when the Holocene Epoch began.[2]

The term Upper Pleistocene is currently in use as a provisional or "quasi-formal" designation by the International Union of Geological Sciences (IUGS). Although the three oldest ages of the Pleistocene (the Gelasian, the Calabrian and the Chibanian) have been officially defined, the Late Pleistocene has yet to be formally defined, along with consideration of a proposed Anthropocene sub-division of the Holocene.[4]

The main feature of the Late Pleistocene was glaciation, for example the Würm glaciation in the Alps of Europe, to 14 ka, and the subsequent Younger Dryas. Many megafauna became extinct during this age, a trend that continued into the Holocene. In palaeoanthropology, the Late Pleistocene contains the Upper Palaeolithic stage of human development, including many of the early human migrations and the extinction of the last remaining archaic human species.

Last Ice Age

The proposed beginning of the Late Pleistocene is the end of the Penultimate Glacial Period (PGP) 126 ka when the Riß glaciation (Alpine) was being succeeded by the Eemian (Riß-Würm) interglacial period.[5] The Riß-Würm ended 115 ka with the onset of the Last Glacial Period (LGP) which is known in Europe as the Würm (Alpine) or Devensian (Great Britain) or Weichselian glaciation (northern Europe); these are broadly equated with the Wisconsin glaciation (North America), though technically that began much later.[5]

The Last Glacial Maximum was reached during the later millennia of the Würm/Weichselian, estimated between 26 ka and 19 ka when deglaciation began in the Northern Hemisphere. The Würm/Weichselian endured until 16 ka with Northern Europe, including most of Great Britain, covered by an ice sheet. The glaciers reached the Great Lakes in North America.[2] Sea levels fell and two land bridges were temporarily in existence that had significance for human migration: Doggerland, which connected Great Britain to mainland Europe; and the Bering land bridge which joined Alaska to Siberia.[6][7]

The Last Ice Age was followed by the Late Glacial Interstadial, a period of global warming to 12.9 ka, and the Younger Dryas, a return to glacial conditions until 11.7 ka. Palaeoclimatology holds that there was a sequence of stadials and interstadials from about 16 ka until the end of the Pleistocene. These were the Oldest Dryas (stadial), the Bølling oscillation (interstadial), the Older Dryas (stadial), the Allerød oscillation (interstadial) and finally the Younger Dryas.[8]

The end of the Younger Dryas marks the boundary between the Pleistocene and Holocene Epochs. Man in all parts of the world was still culturally and technologically in the Palaeolithic (Old Stone) Age. Tools and weapons were basic stone or wooden implements. Nomadic tribes followed moving herds. Non-nomadics acquired their food by gathering and hunting.[9]

Africa

In Egypt, the Late (or Upper) Palaeolithic began sometime after 30,000 BC. People in North Africa had relocated to the Nile Valley as the Sahara was transformed from grassland to desert.[10] The Nazlet Khater skeleton was found in 1980 and has been radiocarbon dated to between 30,360 and 35,100 years ago.[11][12]

Eurasia

Neanderthal Man (Homo neanderthalensis) inhabited Eurasia until becoming extinct between 40 and 30 ka.[9][13] Towards the end of the Pleistocene and possibly into the early Holocene, several large mammalian species including the woolly rhinoceros, mammoth, mastodon and Irish elk became extinct.[13]

Cave paintings have been found at Lascaux in the Dordogne which may be more than 17,000 years old. These are mainly of buffalo, deer and other animals hunted by man. Later paintings occur in caves throughout the world with further examples at Altamira (Spain) and in India, Australia and the Sahara.[13][14][better source needed][15][better source needed]

Magdalenian hunter-gatherers were widespread in western Europe about 18,000 years ago until the end of the Pleistocene. They invented the earliest known harpoons using reindeer horn.[16][better source needed]

The only domesticated animal in the Pleistocene was the dog, which evolved from the grey wolf into its many modern breeds. It is believed that the grey wolf became associated with hunter-gatherer tribes around 15,000 ka.[17] The earliest remains of a true domestic dog have been dated to 14,200 ka.[18] Domestication first happened in Eurasia but could have been anywhere from Western Europe to East Asia.[19] Domestication of other animals such as cattle, goats, pigs and sheep did not begin until the Holocene when settled farming communities became established in the Near East.[17] The cat was probably not domesticated before c. 7500 BC at the earliest, again in the Near East.[20]

A butchered brown bear patella found in Alice and Gwendoline Cave in County Clare and dated to 10,860 to 10,641 BC indicates the first known human activity in Ireland.[21]

Far East

The very first human habitation in the Japanese archipelago has been traced to prehistoric times between 40,000 BC and 30,000 BC. The earliest fossils are radiocarbon dated to c. 35,000 BC. Japan was once linked to the Asian mainland by land bridges via Hokkaido and Sakhalin Island to the north, but was unconnected at this time when the main islands of Hokkaido, Honshu, Kyushu and Shikoku were all separate entities.[22]

North America

Bison occidentalis skull at the Cleveland Museum of Natural History.

From about 28 ka, there were migrations across the Bering land bridge from Siberia to Alaska. The people became the Native Americans. It is believed that the original tribes subsequently moved down to Central and South America under pressure from later migrations.[7][13]

In the North American land mammal age scale, the Rancholabrean spans the time from c. 240,000 years ago to c. 11,000 years ago. It is named after the Rancho La Brea fossil site in California, characterised by extinct forms of bison in association with other Pleistocene species such as the mammoth.[23][24][25]

Bison occidentalis and Bison antiquus, an extinct subspecies of the smaller present-day bison, survived the Late Pleistocene period, between about 12 and 11 ka ago. Clovis peoples depended on these bison as their major food source. Earlier kills of camels, horses, and muskoxen found at Wally's beach were dated to 13.1-13.3 ka B.P.[26]

South America

The South American land mammal age Lujanian corresponds with the Late Pleistocene.

Antarctica

Oceania

There is evidence of human habitation in mainland Australia, Indonesia, New Guinea and Tasmania from c. 45,000 BC. The finds include rock engravings, stone tools and evidence of cave habitation.[27]

References

  1. ^ a b c d Cohen, K. M.; Finney, S. C.; Gibbard, P. L.; Fan, J.-X. (January 2020). "International Chronostratigraphic Chart" (PDF). International Commission on Stratigraphy. Retrieved 2020.
  2. ^ a b c d Mike Walker; et al. (December 2018). "Formal ratification of the subdivision of the Holocene Series/Epoch (Quaternary System/Period)" (PDF). Episodes. Subcommission on Quaternary Stratigraphy (SQS). 41 (4): 213-223. doi:10.18814/epiiugs/2018/018016. Retrieved 2019.This proposal on behalf of the SQS has been approved by the International Commission on Stratigraphy (ICS) and formally ratified by the Executive Committee of the International Union of Geological Sciences (IUGS).
  3. ^ D. Dahl-Jensen & others (2013). "Eemian interglacial reconstructed from a Greenland folded ice core" (PDF). Nature. 493 (7433): 489-494. Bibcode:2013Natur.493..489N. doi:10.1038/nature11789. PMID 23344358.
  4. ^ P. L. Gibbard (2015). "The Quaternary System/Period and its major subdivisions". Russian Geology and Geophysics. 56 (4): 686-688. doi:10.1016/j.rgg.2015.03.015.
  5. ^ a b D. Dahl-Jensen & others (2013). "Eemian interglacial reconstructed from a Greenland folded ice core" (PDF). Nature. 493 (7433): 489-94. Bibcode:2013Natur.493..489N. doi:10.1038/nature11789. PMID 23344358.
  6. ^ Lane, Megan (15 February 2011). "The moment Great Britain became an island". BBC News. BBC. Retrieved 2019.
  7. ^ a b Winter, Barbara. "Bering Land Bridge". SFU Museum of Archaeology and Ethnology. Archived from the original on 28 April 2015. Retrieved 2019.
  8. ^ Carlson, A. E. (2013). "The Younger Dryas Climate Event" (PDF). Encyclopaedia of Quaternary Science. 3. Elsevier. pp. 126-134.
  9. ^ a b Bronowski 1973, pp. 59-60.
  10. ^ "Ancient Egyptian Culture: Palaeolithic Egypt". Emuseum. Minnesota State University. 2002. Archived from the original on 1 June 2010. Retrieved 2019.
  11. ^ Willoughby, Pamela R. (2007). The Evolution of Modern Humans in Africa: A Comprehensive Guide. Rowman Altamira. pp. 181-182. ISBN 978-0759101197.
  12. ^ Bouchneba, L.; Crevecoeur, I. (2009). "The inner ear of Nazlet Khater 2 (Upper Palaeolithic, Egypt)". Journal of Human Evolution. 56 (3): 257-262. doi:10.1016/j.jhevol.2008.12.003. PMID 19144388.
  13. ^ a b c d Teeple 2002, pp. 12-13.
  14. ^ David Whitehouse (9 August 2000). "Ice Age star map discovered - thought to date back 16,500 years". BBC News. BBC. Retrieved 2019.
  15. ^ "Lascaux Cave". Ancient-Wisdom. 2019. Retrieved 2019.
  16. ^ "History of the Magdalenian". The Magdalenian. Les Eyzies. 2019. Retrieved 2019.
  17. ^ a b Evan K. Irving-Pease; et al. (2018). "Palaeogenomics of Animal Domestication". In Lindqvist, C.; Rajora, O. (eds.). Palaeogenomics. Population Genomics. Springer, Cham. pp. 225-272. doi:10.1007/13836_2018_55. ISBN 978-3-030-04752-8.
  18. ^ Olaf Thalmann; Angela R. Perri (2018). "Palaeogenomic Inferences of Dog Domestication". In Lindqvist, C.; Rajora, O. (eds.). Palaeogenomics. Population Genomics. Springer, Cham. pp. 273-306. doi:10.1007/13836_2018_27. ISBN 978-3-030-04752-8.
  19. ^ David E. Machugh; et al. (2016). "Taming the Past: Ancient DNA and the Study of Animal Domestication". Annual Review of Animal Biosciences. 5: 329-351. doi:10.1146/annurev-animal-022516-022747. PMID 27813680.
  20. ^ C. A. Driscoll; et al. (2007). "The Near Eastern Origin of Cat Domestication". Science. 317 (5837): 519-523. Bibcode:2007Sci...317..519D. doi:10.1126/science.1139518. ISSN 0036-8075. PMC 5612713. PMID 17600185.
  21. ^ Dowd, Marion (2016). "A Remarkable Cave Discovery". Archaeology Ireland. 30 (2): 21-25. JSTOR 43816774.
  22. ^ Fujita, Masaki (2016). "Advanced maritime adaptation in the western Pacific coastal region extends back to 35,000-30,000 years before present". Proceedings of the National Academy of Sciences of the United States of America. 113 (40): 11184-11189. doi:10.1073/pnas.1607857113. PMC 5056111. PMID 27638208.
  23. ^ A. E. Sanders, R. E. Weems & L. B. Albright III (2009). Formalization of the mid-Pleistocene "Ten Mile Hill beds" in South Carolina with evidence for placement of the Irvingtonian-Rancholabrean boundary. Museum of Northern Arizona Bulletin (64:369-375).
  24. ^ D. E. Savage (1951). Late Cenozoic vertebrates of the San Francisco Bay region. University of California Publications; Bulletin of the Department of Geological Sciences (28:215-314).
  25. ^ Bell, C. J. (2004). "The Blancan, Irvingtonian, and Rancholabrean mammal ages". In Woodburne, M. O. (ed.). Late Cretaceous and Cenozoic Mammals of North America: Biostratigraphy and Geochronology. New York: Columbia University Press. pp. 232-314. ISBN 0-231-13040-6.
  26. ^ Michael R. Waters; Thomas W. Stafford Jr.; Brian Kooyman; L. V. Hills (23 March 2015). "Late Pleistocene horse and camel hunting at the southern margin of the ice-free corridor: Reassessing the age of Wally's Beach, Canada". PNAS. 112 (14): 4263-4267. doi:10.1073/pnas.1420650112. PMC 4394292. PMID 25831543.
  27. ^ Teeple 2002, p. 13.

Bibliography

Further reading

  • Ehlers, J., and P.L. Gibbard, 2004a, Quaternary Glaciations: Extent and Chronology 2: Part II North America. Elsevier, Amsterdam. ISBN 0-444-51462-7
  • Ehlers, J., and P L. Gibbard, 2004b, Quaternary Glaciations: Extent and Chronology 3: Part III: South America, Asia, Africa, Australia, Antarctica. ISBN 0-444-51593-3
  • Frison, George C., Prehistoric Human and Bison Relationships on the Plains of North America, August 2000, International Bison Conference, Edmonton, Alberta.
  • Gillespie, A. R., S. C. Porter, and B. F. Atwater, 2004, The Quaternary Period in the United States. Developments in Quaternary Science no. 1. Elsevier, Amsterdam. ISBN 978-0-444-51471-4
  • Mangerud, J., J. Ehlers, and P. Gibbard, 2004, Quaternary Glaciations : Extent and Chronology 1: Part I Europe. Elsevier, Amsterdam. ISBN 0-444-51462-7
  • Sibrava, V., Bowen, D. Q., and Richmond, G. M., 1986, Quaternary Glaciations in the Northern Hemisphere, Quaternary Science Reviews. vol. 5, pp. 1-514.

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