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Comment
. 2009 Jul 10;325(5937):148; author reply 148.
doi: 10.1126/science.1168182.

Comment on "DNA from pre-Clovis human coprolites in Oregon, North America"

Hendrik Poinar  1 , Stuart Fiedel, Christine E King, Alison M Devault, Kirsti Bos, Melanie Kuch, Regis Debruyne
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Comment

Comment on "DNA from pre-Clovis human coprolites in Oregon, North America"

Hendrik Poinar et al. Science. .

Abstract

Gilbert et al. (Reports, 9 May 2008, p. 786) analyzed DNA from radiocarbon-dated paleofecal remains from Paisley Cave, Oregon, which ostensibly demonstrate a human presence in North America predating the well-established Clovis complex. We question the authenticity of their DNA results and argue that in the absence of intact stratigraphy and diagnostic artifacts, and in view of carbon isotope anomalies, the radiocarbon dates of the oldest specimens are unreliable.

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  • DNA from pre-Clovis human coprolites in Oregon, North America.
    Gilbert MT, Jenkins DL, Götherstrom A, Naveran N, Sanchez JJ, Hofreiter M, Thomsen PF, Binladen J, Higham TF, Yohe RM 2nd, Parr R, Cummings LS, Willerslev E. Gilbert MT, et al. Science. 2008 May 9;320(5877):786-9. doi: 10.1126/science.1154116. Epub 2008 Apr 3. Science. 2008. PMID: 18388261

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