Clovis age Western stemmed projectile points and human coprolites at the Paisley Caves

Research output: Contribution to journalJournal articleResearchpeer-review

  • Dennis L. Jenkins
  • Loren G. Davis
  • Thomas Stafford jr.
  • Paula Campos
  • Bryan Hockett
  • George T. Jones
  • Linda Scott Cummings
  • Chad Yost
  • Thomas J. Connolly
  • Robert M. Yohe II
  • Summer C. Gibbons
  • Maanasa Raghavan
  • Morten Rasmussen
  • Johanna L. A. Paijmans
  • Michael Hofreiter
  • Brian M. Kemp
  • Jody Lynn Barta
  • Cara Monroe
  • Gilbert, Tom
  • Willerslev, Eske
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 C years ago are well stratified. Western Stemmed projectile points were recovered in deposits dated to 11,070 to 11,340 C 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.
Original languageEnglish
Issue number6091
Pages (from-to)223-228
Number of pages6
Publication statusPublished - 13 Jul 2012

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