Main Initial Upper Paleolithic human remains ( ) and stone assemblage sites ( ).[1]

The Initial Upper Paleolithic (also IUP, c. 50,000-40,000 BP) covers the first stage of the Upper Paleolithic, during which modern human populations expanded throughout Eurasia.

Genetics

Repetitive expansions into Eurasia from a population Hub OoA.

Modern humans of the Initial Upper Paleolithic wave (IUP) are suggested to have expanded from a population hub through a star-like expansion pattern (>45kya), and are linked to "East-Eurasian" lineages, broadly ancestral to modern populations in Eastern Eurasia and Oceania, notably East Asian peoples, Aboriginal Australians, and Papuans. While ancient samples found in Central Asia and Europe, such as the Ust'-Ishim man, Bacho Kiro or Oase 2, used inland routes, the ancestors of Eastern Asians and Oceanians used a Southern dispersal route through South Asia, rapidly diverging there.[2][3][4]

Initial Upper Paleolithic sites are considered as forming the earliest culture of modern humans in Europe.[5][6] However, these people do not appear to have been the ancestors of later Europeans as the very few ancient DNA (aDNA) samples recovered from this period are not related to later samples.[7] They ended in Bacho Kiro cave and Oase, but this wave of colonization did not go as far as Western Europe, and apparently was not successful.[8]

Forensic facial reconstruction of Oase 2

These early Eurasian populations probably mated episodically with Neanderthals in the period between 50,000 and 60,000 years ago, probably during the initial phase of their expansion in the Middle East, and they carried ~2–9% Neanderthal ancestry in their genomes.[9] It is also considered that the early modern human coexisted with Neanderthals in Europe for a period of about 3,000–5,000 years.[10]

Among the earliest modern humans which have been directly dated to this period are:[11]

These individuals (except Tianyuan)[14] did not contribute substantially to modern humans, but from around 37,000 a new wave of modern humans emerged, creating a single founder population, which became ancestral to modern Europeans, exemplified by individuals such as Kostenki-14.[15]

Technology and art

The Initial Upper Paleolithic corresponds to the spread of a particular techno-complex in Eurasia,[5] to which possibly relates the European Châtelperronian.[16] But the Aurignacian complex (Protoaurignacian and Early Aurignacian) with its famous Cave art seems to correspond to another, later, human wave which spread through the Levant area.[5] In effect Aurignacian (42,000-28,000 BP) layers generally postdate late Mousterian and Initial Upper Paleolithic assemblages.[17] Aurignacian seems to have emerged out of the Initial Upper Paleolithic around 43,000 to 42,000 cal BP, in a process that is yet to be determined.[18]

References

  1. ↑ Hajdinjak, Mateja; Mafessoni, Fabrizio (April 2021). "Initial Upper Palaeolithic humans in Europe had recent Neanderthal ancestry". Nature. 592 (7853): 253–257. Bibcode:2021Natur.592..253H. doi:10.1038/s41586-021-03335-3. ISSN 1476-4687. PMC 8026394. PMID 33828320.
  2. ↑ Vallini et al. 2022 (2022-07-04). "Genetics and Material Culture Support Repeated Expansions into Paleolithic Eurasia from a Population Hub Out of Africa". Genome Biology and Evolution. 14 (4): evac045. doi:10.1093/gbe/evac045. PMC 9021735. PMID 35445261.{{cite journal}}: CS1 maint: numeric names: authors list (link)
  3. ↑ Yang, Melinda A. (2022-01-06). "A genetic history of migration, diversification, and admixture in Asia". Human Population Genetics and Genomics. 2 (1): 1–32. doi:10.47248/hpgg2202010001. ISSN 2770-5005.
  4. ↑ Sato, Takehiro; Adachi, Noboru; Kimura, Ryosuke; Hosomichi, Kazuyoshi; Yoneda, Minoru; Oota, Hiroki; Tajima, Atsushi; Toyoda, Atsushi; Kanzawa-Kiriyama, Hideaki; Matsumae, Hiromi; Koganebuchi, Kae (2021-09-01). "Whole-Genome Sequencing of a 900-Year-Old Human Skeleton Supports Two Past Migration Events from the Russian Far East to Northern Japan". Genome Biology and Evolution. 13 (9): evab192. doi:10.1093/gbe/evab192. ISSN 1759-6653. PMC 8449830. PMID 34410389.
  5. 1 2 3 Hublin, Jean-Jacques; Sirakov, Nikolay (11 May 2020). "Initial Upper Palaeolithic Homo sapiens from Bacho Kiro Cave, Bulgaria" (PDF). Nature. 581 (7808): 299–302. Bibcode:2020Natur.581..299H. doi:10.1038/s41586-020-2259-z. PMID 32433609. S2CID 218592678. Archaeological and palaeontological evidence strongly suggest that the initial modern colonization of eastern Europe and central Asia should be related to the spread of techno-complexes assigned to the Initial Upper Palaeolithic. This first expansion may have started as early as 48 ka cal BP. The earliest phases of the Aurignacian complex (Protoaurignacian and Early Aurignacian) seem to represent another modern wave of migrations, starting in the Levant area. The expansion of this techno-complex throughout Europe completed the modern colonization of the continent.
  6. ↑ Bower, Bruce (11 May 2020). "The earliest known humans in Europe may have been found in a Bulgarian cave". Science News.
  7. ↑ Callaway, Ewen (1 March 2023). "Ancient genomes show how humans escaped Europe's deep freeze". Nature News. 615 (7951): 197–198. Bibcode:2023Natur.615..197C. doi:10.1038/d41586-023-00611-2. PMID 36859677. S2CID 257282687.
  8. ↑ Hublin, Jean-Jacques (15 June 2015). "The modern human colonization of western Eurasia: when and where?". Quaternary Science Reviews. 118: 194–210. Bibcode:2015QSRv..118..194H. doi:10.1016/j.quascirev.2014.08.011. hdl:11858/00-001M-0000-0024-11F6-F. Over a geographical domain, covering a large portion of Eurasia, the IUP displays a number of shared features in terms of blank production. Although its exact chronology is still under investigation, the start of its expansion out of southwest Asia most likely predates 47 ka cal BP, as suggested by the dates obtained at Bohunice (Richter et al., 2009) and Kara-Bom (Goebel et al., 1993). This early expansion would be more in agreement with an older date for the beginning of the IUP (Marks, 1983) than with those produced at Ksar Akil (Douka et al., 2013) and Üçagızlı (Kuhn et al., 2009). The recent discovery of the femur of Ust-Ischim in Siberia, directly dated at 45 ka BP and indisputably modern both anatomically and genetically, completes the more fragmentary discoveries from Ksar Akil (layer XXV), Üçagızlı and Bacho Kiro (layer 11), and brings support to the notion that the IUP represents a wave of migrations of fully modern humans. This wave, however, might not have been completely successful and apparently did not make it to western Europe.
  9. ↑ Churchill, Steven E.; Keys, Kamryn; Ross, Ann H. (August 2022). "Midfacial Morphology and Neandertal–Modern Human Interbreeding". Biology. 11 (8): 1163. doi:10.3390/biology11081163. ISSN 2079-7737. PMC 9404802. PMID 36009790. Likewise, a relatively high proportion (6–9%) of the genome of a 42–37 Ka-old modern human from Romania, Oase 1, appears to have derived from Neandertals, consistent with this individual having had a Neandertal ancestor some four-to-six generations earlier
  10. ↑ Prüfer, Kay; Posth, Cosimo (June 2021). "A genome sequence from a modern human skull over 45,000 years old from Zlatý kůň in Czechia". Nature Ecology & Evolution. 5 (6): 820–825. doi:10.1038/s41559-021-01443-x. ISSN 2397-334X. PMC 8175239. PMID 33828249.
  11. 1 2 Prüfer, Kay; Posth, Cosimo (June 2021). "A genome sequence from a modern human skull over 45,000 years old from Zlatý kůň in Czechia". Nature Ecology & Evolution. 5 (6): 820–825. doi:10.1038/s41559-021-01443-x. ISSN 2397-334X. PMC 8175239. PMID 33828249. A female individual from Zlatý kůň, Czechia. We found that she belonged to a population that appears to have contributed genetically neither to later Europeans nor to Asians. (...) A complete genome has been produced from the ~45,000-year-old remains of Ust'-Ishim, a Siberian individual who showed no genetic continuity to later Eurasians. This contrasts with the ~40,000-year-old East Asian individual from Tianyuan whose genome is more closely related to many present-day Asians and Native Americans than to Europeans. From Europe, only the partial genome of an individual called Oase 1 and dated to ~40 ka has been recovered, and this showed no evidence of shared ancestry with later Europeans
  12. ↑ Hajdinjak et al. 2021, p. 253, "They have been directly radiocarbon-dated to between 45,930 and 42,580 calibrated years before present (cal. BP), and their mitochondrial genomes are of the modern human type, suggesting that they are the oldest Upper Palaeolithic modern humans that have been recovered in Europe.".
  13. 1 2 Fu, Qiaomei (2016). "The genetic history of Ice Age Europe". Nature. 534 (7606): 200–205. Bibcode:2016Natur.534..200F. doi:10.1038/nature17993. PMC 4943878. PMID 27135931. Ust'-Ishim and Oase1, which predate GoyetQ116-1 and Kostenki14, do not show any distinctive affinity to later Europeans
  14. ↑ Villalba-Mouco, Vanessa; van de Loosdrecht, Marieke S.; Rohrlach, Adam B.; Fewlass, Helen; Talamo, Sahra; Yu, He; Aron, Franziska; Lalueza-Fox, Carles; Cabello, Lidia; Cantalejo Duarte, Pedro; Ramos-Muñoz, José; Posth, Cosimo; Krause, Johannes; Weniger, Gerd-Christian; Haak, Wolfgang (April 2023). "A 23,000-year-old southern Iberian individual links human groups that lived in Western Europe before and after the Last Glacial Maximum". Nature Ecology & Evolution. 7 (4): 597–609. doi:10.1038/s41559-023-01987-0. ISSN 2397-334X. PMC 10089921. PMID 36859553.
  15. ↑ Fu, Qiaomei (2016). "The genetic history of Ice Age Europe". Nature. 534 (7606): 200–205. Bibcode:2016Natur.534..200F. doi:10.1038/nature17993. PMC 4943878. PMID 27135931. Whereas the earliest modern humans in Europe did not contribute substantially to present-day Europeans, all individuals between ~37,000 and ~14,000 years ago descended from a single founder population which forms part of the ancestry of present-day Europeans." (...) "First, at least some of the initial modern humans to appear in Europe, exemplified by Ust'-Ishim and Oase1, failed to contribute appreciably to the current European gene pool. Only from around 37,000 years ago do all the European individuals analyzed share ancestry with present-day Europeans
  16. ↑ Zwyns, Nicolas (20 June 2021). "The Initial Upper Paleolithic in Central and East Asia: Blade Technology, Cultural Transmission, and Implications for Human Dispersals". Journal of Paleolithic Archaeology. 4 (3): 19. doi:10.1007/s41982-021-00085-6. ISSN 2520-8217. S2CID 237661736.
  17. ↑ Tryon, Christian A. (12 December 2015). "The Aurignacian Viewed from Africa". Palethnologie. Archéologie et sciences humaines (7). doi:10.4000/palethnologie.693. ISSN 2108-6532. In many parts of Europe and the Levant, Aurignacian strata postdate a complex array of regionally specific late Mousterian and Initial Upper Paleolithic assemblages variably attributed to Neanderthals and H. sapiens that likely record an interval of profound behavioral and demographic changes
  18. ↑ Haws, Jonathan A. (2020). "The early Aurignacian dispersal of modern humans into westernmost Eurasia". PNAS. 117 (41): 25414–25422. Bibcode:2020PNAS..11725414H. doi:10.1073/pnas.2016062117. PMC 7568277. PMID 32989161. At some point, around 43 to 42 ka cal BP, the regional variants of the Initial Upper Paleolithic coalesced into the Aurignacian technocomplex, appearing synchronously across western Eurasia

Sources

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