About the Authors

Kevin G. Hatala

kghatala@gwmail.gwu.edu

Affiliations Hominid Paleobiology Doctoral Program, The George Washington University, Washington, D. C., United States of America, Center for the Advanced Study of Hominid Paleobiology, Department of Anthropology, The George Washington University, Washington, D. C., United States of America

Heather L. Dingwall

Affiliation Center for the Advanced Study of Hominid Paleobiology, Department of Anthropology, The George Washington University, Washington, D. C., United States of America

Roshna E. Wunderlich

Affiliation Department of Biology, James Madison University, Harrisonburg, Virginia, United States of America

Brian G. Richmond

Affiliations Center for the Advanced Study of Hominid Paleobiology, Department of Anthropology, The George Washington University, Washington, D. C., United States of America, Human Origins Program, National Museum of Natural History, Smithsonian Institution, Washington, D. C., United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KGH REW BGR. Performed the experiments: KGH HLD REW BGR. Analyzed the data: KGH. Contributed reagents/materials/analysis tools: REW BGR. Wrote the paper: KGH HLD REW BGR.