Craniometrics reveal "two layers" of prehistoric human dispersal in eastern Eurasia

Matsumura, Hirofumi, Hung, Hsiao-chun, Higham, Charles, Zhang, Chi, Yamagata, Mariko, Nguyen, Lan Cuong, Li, Zhen, Fan, Xue-chun, Simanjuntak, Truman, Oktaviana, Adhi Agus, He, Jia-ning, Chen, Chung-yu, Pan, Chien-kuo, He, Gang, Sun, Guo-ping, Huang, Wei-jin, Li, Xin-wei, Wei, Xing-tao, Domett, Kate, Halcrow, Siân, Nguyen, Kim Dung, Trinh, Hoang Hiep, Bui, Chi Hoang, Nguyen, Khanh Trung Kien, and Reinecke, Andreas (2019) Craniometrics reveal "two layers" of prehistoric human dispersal in eastern Eurasia. Scientific Reports, 9. 1451.

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Abstract

This cranio-morphometric study emphasizes a "two-layer model" for eastern Eurasian anatomically modern human (AMH) populations, based on large datasets of 89 population samples including findings directly from ancient archaeological contexts. Results suggest that an initial "first layer" of AMH had related closely to ancestral Andaman, Australian, Papuan, and Jomon groups who likely entered this region via the Southeast Asian landmass, prior to 65–50 kya. A later "second layer" shared strong cranial affinities with Siberians, implying a Northeast Asian source, evidenced by 9 kya in central China and then followed by expansions of descendant groups into Southeast Asia after 4 kya. These two populations shared limited initial exchange, and the second layer grew at a faster rate and in greater numbers, linked with contexts of farming that may have supported increased population densities. Clear dichotomization between the two layers implies a temporally deep divergence of distinct migration routes for AMH through both southern and northern Eurasia.

Item ID: 57154
Item Type: Article (Research - C1)
ISSN: 2045-2322
Copyright Information: Open Access: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Funders: Japan Society for the Promotion of Science (JSPS), Australian Research Council (ARC)
Projects and Grants: JSPS JPS 16H02527, ARC DP 110101097, ARC DP 150104458
Date Deposited: 20 Feb 2019 07:30
FoR Codes: 43 HISTORY, HERITAGE AND ARCHAEOLOGY > 4301 Archaeology > 430102 Archaeology of Asia, Africa and the Americas @ 50%
44 HUMAN SOCIETY > 4401 Anthropology > 440103 Biological (physical) anthropology @ 50%
SEO Codes: 95 CULTURAL UNDERSTANDING > 9505 Understanding Past Societies > 950502 Understanding Asias Past @ 100%
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