About the Authors

Briggs Buchanan

Affiliations Human Evolutionary Studies Program and Department of Archaeology, Simon Fraser University, Burnaby, British Columbia, Canada, Department of Anthropology, University of Missouri, Columbia, Missouri, United States of America

J. David Kilby

Affiliation Department of Anthropology and Applied Archaeology, Eastern New Mexico University, Portales, New Mexico, United States of America

Bruce B. Huckell

Affiliation Maxwell Museum of Anthropology and Department of Anthropology, University of New Mexico, Albuquerque, New Mexico, United States of America

Michael J. O'Brien

Affiliation Department of Anthropology, University of Missouri, Columbia, Missouri, United States of America

Mark Collard

mcollard@sfu.ca

Affiliations Human Evolutionary Studies Program and Department of Archaeology, Simon Fraser University, Burnaby, British Columbia, Canada, Department of Anthropology, University of Missouri, Columbia, Missouri, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BB JDK BBH MJO MC. Performed the experiments: BB. Analyzed the data: BB JDK BBH MJO MC. Contributed reagents/materials/analysis tools: BB JDK MC. Wrote the paper: BB JDK BBH MJO MC.