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Comment on "DNA from Pre-Clovis Human Coprolites in Oregon, North America"
Hendrik Poinar,*,1Stuart Fiedel,2Christine E. King,1Alison M. Devault,1Kirsti Bos,1Melanie Kuch,1Regis Debruyne1
Gilbert et al. (Reports, 9 May 2008, p. 786) analyzed DNA fromradiocarbon-dated paleofecal remains from Paisley Cave, Oregon,which ostensibly demonstrate a human presence in North Americapredating the well-established Clovis complex. We question theauthenticity of their DNA results and argue that in the absenceof intact stratigraphy and diagnostic artifacts, and in viewof carbon isotope anomalies, the radiocarbon dates of the oldestspecimens are unreliable.
1 McMaster Ancient DNA Centre, Department of Anthropology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L9 Canada. 2 Louis Berger Group, 801 East Main Street, Suite 500, Richmond, VA 23219, USA.
* To whom correspondence should be addressed: E-mail: poinarh{at}mcmaster.ca
The editors suggest the following Related Resources on Science sites:
In Science Magazine
TECHNICAL COMMENTS
M. Thomas P. Gilbert, Dennis L. Jenkins, Thomas F. G. Higham, Morten Rasmussen, Helena Malmström, Emma M. Svensson, Juan J. Sanchez, Linda Scott Cummings, Robert M. Yohe, II, Michael Hofreiter, Anders Götherström, and Eske Willerslev (10 July 2009) Science325 (5937), 148-b.
[DOI: 10.1126/science.1168457] |Abstract »|Full Text »|PDF »
Morten Rasmussen, Linda Scott Cummings, M. Thomas P. Gilbert, Vaughn Bryant, Colin Smith, Dennis L. Jenkins, and Eske Willerslev (10 July 2009) Science325 (5937), 148-d.
[DOI: 10.1126/science.1167672] |Abstract »|Full Text »|PDF »|Supporting Online Material »
REPORTS
M. Thomas P. Gilbert, Dennis L. Jenkins, Anders Götherstrom, Nuria Naveran, Juan J. Sanchez, Michael Hofreiter, Philip Francis Thomsen, Jonas Binladen, Thomas F. G. Higham, Robert M. Yohe, II, Robert Parr, Linda Scott Cummings, and Eske Willerslev (9 May 2008) Science320 (5877), 786.
[DOI: 10.1126/science.1154116] |Abstract »|Full Text »|PDF »|Supporting Online Material »
THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Response to Comment by Poinar et al. on "DNA from Pre-Clovis Human Coprolites in Oregon, North America".
M. T. P. Gilbert, D. L. Jenkins, T. F. G. Higham, M. Rasmussen, H. Malmstrom, E. M. Svensson, J. J. Sanchez, L. S. Cummings, R. M. Yohe II, M. Hofreiter, et al. (2009)
Science
325, 148
|Abstract »|Full Text »|PDF »
Response to Comment by Goldberg et al. on "DNA from Pre-Clovis Human Coprolites in Oregon, North America".
M. Rasmussen, L. S. Cummings, M. T. P. Gilbert, V. Bryant, C. Smith, D. L. Jenkins, and E. Willerslev (2009)
Science
325, 148
|Abstract »|Full Text »|PDF »
