Title

Clovis Age Western Stemmed Projectile Points and Human Coprolites at the Paisley Caves

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Publisher

American Association for the Advancement of Science

Publication Date

July 2012

Abstract

The Paisley Caves in Oregon record the oldest directly dated human remains (DNA) in the Western Hemisphere. More than 100 high-precision radiocarbon dates show that deposits containing artifacts and coprolites ranging in age from 12,450 to 2295 14C years ago are well stratified. Western Stemmed projectile points were recovered in deposits dated to 11,070 to 11,340 14C years ago, a time contemporaneous with or preceding the Clovis technology. There is no evidence of diagnostic Clovis technology at the site. These two distinct technologies were parallel developments, not the product of a unilinear technological evolution. “Blind testing” analysis of coprolites by an independent laboratory confirms the presence of human DNA in specimens of pre-Clovis age. The colonization of the Americas involved multiple technologically divergent, and possibly genetically divergent, founding groups.

Notes

Science, Vol. 337, no. 6091 (2012-07-13).

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RDA

Type

Article

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serial

Identifier

SFS0071579_00001

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