About the Authors

Nuria Garcia

Affiliations Departamento de Paleontologia, Facultad de Ciencias Geológicas, Universidad Complutense de Madrid, Ciudad Universitaria 28040 Madrid, Spain, Centro Mixto (UCM-ISCIII) de Evolución y Comportamiento Humanos, C/Monforte de Lemos 2–4, Pab. 14, 28029 Madrid, Spain

Robert S. Feranec

Affiliation Research and Collections Division, New York State Museum, 3140 Cultural Education Center, Albany, NY 12230–0001, United States of America

Benjamin H. Passey

Affiliation Department of Earth and Planetary Sciences, Johns Hopkins University, 120 Olin Hall, 3400 N. Charles Street, Baltimore, MD 21218, United States of America

Thure E. Cerling

Affiliation Department of Geology & Geophysics, University of Utah, Frederick Albert Sutton Building, 115 S 1460 East Room 383, Salt Lake City, UT 84112, United States of America

Juan Luis Arsuaga

jlarsuaga@isciii.es

Affiliations Departamento de Paleontologia, Facultad de Ciencias Geológicas, Universidad Complutense de Madrid, Ciudad Universitaria 28040 Madrid, Spain, Centro Mixto (UCM-ISCIII) de Evolución y Comportamiento Humanos, C/Monforte de Lemos 2–4, Pab. 14, 28029 Madrid, Spain

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NG RSF JLA. Performed the experiments: NG RSF BHP TEC. Analyzed the data: NG RSF BHP TEC JLA. Contributed reagents/materials/analysis tools: NG RSF BHP TEC JLA. Wrote the paper: NG RSF BHP TEC JLA.