パレオアジア文化史学

文部科学省 科学研究費補助金
新学術領域研究(研究領域提案型)
平成28年度~32年度

関連

A02: 出穂雅実らの論文がScience Vol. 365に掲載されました(LateUpper Paleolithic occupation at Cooper’sFerry, Idaho,USA, ~16,000 years ago)

https://science.sciencemag.org/content/365/6456/891

Title: LateUpper Paleolithic occupation at Cooper’sFerry, Idaho,USA, ~16,000 years ago

Authors: Loren G. Davis, David B. Madsen, Lorena Becerra-Valdivia, Thomas Higham, David A. Sisson, Sarah M. Skinner, Daniel Stueber, Alexander J. Nyers, Amanda Keen-Zebert, Christina Neudorf, Melissa Cheyney, Masami Izuho, Fumie Iizuka, Samuel R. Burns, Clinton W. Epps, Samuel C. Willis, Ian Buvit

Abstract
Radiocarbon dating of the earliest occupational phases at the Cooper’s Ferry site in western Idaho indicates that people repeatedly occupied the Columbia River basin, starting between 16,560 and 15,280 calibrated years before the present (cal yr B.P.). Artifacts from these early occupations indicate the use of unfluted stemmed projectile point technologies before the appearance of the Clovis Paleoindian tradition and support early cultural connections with northeastern Asian Upper Paleolithic archaeological traditions. The Cooper’s Ferry site was initially occupied during a time that predates the opening of an ice-free corridor (≤14,800 cal yr B.P.), which supports the hypothesis that initial human migration into the Americas occurred via a Pacific coastal route.

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