Pre-Clovis occupation of the Americas identified by human fecal biomarkers in coprolites from Paisley Caves, Oregon.
| Autor: | Shillito LM; School of History, Classics and Archaeology, Armstrong Building, Newcastle University, Newcastle upon Tyne NE1 7RU, UK., Whelton HL; Organic Geochemistry Unit, School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK., Blong JC; School of History, Classics and Archaeology, Armstrong Building, Newcastle University, Newcastle upon Tyne NE1 7RU, UK., Jenkins DL; Museum of Natural and Cultural History, University of Oregon, Eugene, OR 97403, USA., Connolly TJ; Museum of Natural and Cultural History, University of Oregon, Eugene, OR 97403, USA., Bull ID; Organic Geochemistry Unit, School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK. |
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| Jazyk: | angličtina |
| Zdroj: | Science advances [Sci Adv] 2020 Jul 15; Vol. 6 (29), pp. eaba6404. Date of Electronic Publication: 2020 Jul 15 (Print Publication: 2020). |
| DOI: | 10.1126/sciadv.aba6404 |
| Abstrakt: | When and how people first settled in the Americas is an ongoing area of research and debate. The earliest sites typically only contain lithic artifacts that cannot be directly dated. The lack of human skeletal remains in these early contexts means that alternative sources of evidence are needed. Coprolites, and the DNA contained within them, are one such source, but unresolved issues concerning ancient DNA taphonomy and potential for contamination make this approach problematic. Here, we use fecal lipid biomarkers to demonstrate unequivocally that three coprolites dated to pre-Clovis are human, raise questions over the reliance on DNA methods, and present a new radiocarbon date on basketry further supporting pre-Clovis human occupation. (Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY).) |
| Databáze: | MEDLINE |
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