About the Authors

Kristina Killgrove


Affiliation Department of Anthropology, University of West Florida, Pensacola, FL, United States of America

Janet Montgomery

Affiliation Department of Archaeology, Durham University, Durham, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KK. Performed the experiments: KK JM. Analyzed the data: KK. Contributed reagents/materials/analysis tools: JM. Wrote the paper: KK. Collected samples: KK.