COMMUNICATION on CONTEMPORARY ANTHROPOLOGY

Official journal of Shanghai Society of Anthropology eISSN1936-4458 pISSN1938-0580

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COM.on C.A.3:e8/72-76     Online published on May 17, 2009.
FOCUS
Discussion on the Reported Time for Modern Humans Conquered the Americas

YANG Jingmin, ZHU Dongchen

MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai 200433 China


ABSTRACT: The time for modern human entered the Americas was estimated by various fields including archaeology, geography, paleo-ecology, and molecular genetics. Here some simple analyses were performed on the time reported by many papers in these fields, indicating that there have been two waves for the peopling of the Americas, approximately 35,500-22,000 and 18,000-13,000 years ago. The early migrants to Siberia diffused to the Bering area which was above the sea level at that time, and expanded into the Americas subsequently. During 22,000 through 18,000 years ago, the Last Glacial Maximum stopped the early migrant into the Americas until its end stimulated the migrants entered the Americas rapidly for the second wave 18,000 to 13,000 years ago.

Key words: American Indians; Immigration; Last Glacial Maximum; Molecular genetics

Recieved: Apr.16, 2009   Accepted: May. 15,2009  Corresponding: yangjm210@gmail.com


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