About the Authors
- Nikolai D. Ovodov
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Affiliation Siberian Branch of the Russian Academy of Sciences, Institute of Archaeology and Ethnography, Novosibirsk, Russia
- Susan J. Crockford
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Affiliation Pacific Identifications Inc., Victoria, British Columbia, Canada
- Yaroslav V. Kuzmin
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* E-mail: kuzmin@fulbrightmail.org
Affiliation Siberian Branch of the Russian Academy of Sciences, Institute of Geology and Mineralogy, Novosibirsk, Russia
- Thomas F. G. Higham
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Affiliation Research Laboratory for Archaeology and the History of Art, Oxford University, Oxford, United Kingdom
- Gregory W. L. Hodgins
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Affiliation National Science Foundation-Arizona Accelerator Mass Spectrometry Laboratory, University of Arizona, Tucson, Arizona, United States of America
- Johannes van der Plicht
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Affiliations Center for Isotope Research, Groningen University, Groningen, The Netherlands, Faculty of Archaeology, Leiden University, Leiden, The Netherlands
Competing Interests
The authors have declared that no competing interests exist. Although SC is afiliated with a commercial company (Pacific Identifications Inc.), this does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.
Author Contributions
Conceived and designed the experiments: NO SC YK. Performed the experiments: NO SC YK TH GH JvdP. Analyzed the data: NO SC YK TH GH JvdP. Contributed reagents/materials/analysis tools: SC TH GH JvdP. Wrote the paper: SC YK TH GH JvdP.