新款的尖状投掷物或提示存在两个不同的进入北美的移民人群 (IMAGE)

American Association for the Advancement of Science (AAAS)

新款的尖状投掷物或提示存在两个不同的进入北美的移民人群

Caption

2016年在Debra L. Friedkin遗址的挖掘。

Credit

Center for the Study of the First Americans, Texas A&M University

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