About the Authors

Martina Demuro

martina.demuro@adelaide.edu.au

Affiliations Institute for Photonics and Advanced Sensing, School of Chemistry and Physics, The University of Adelaide, Adelaide, Australia, Centro Nacional de Investigación sobre la Evolución Humana, Burgos, Spain

Lee J. Arnold

Affiliations Institute for Photonics and Advanced Sensing, School of Chemistry and Physics, The University of Adelaide, Adelaide, Australia, Centro Nacional de Investigación sobre la Evolución Humana, Burgos, Spain, The Environment Institute and School of Earth and Environmental Sciences, The University of Adelaide, Adelaide, Australia

Josep M. Parés

Affiliation Centro Nacional de Investigación sobre la Evolución Humana, Burgos, Spain

Alfredo Pérez-González

Affiliation Centro Nacional de Investigación sobre la Evolución Humana, Burgos, Spain

Ana I. Ortega

Affiliation Centro Nacional de Investigación sobre la Evolución Humana, Burgos, Spain

Juan L. Arsuaga

Affiliations Centro Mixto Universidad Complutense-Instituto de Salud Carlos III de Evolución y Comportamiento Humanos, Madrid, Spain, Departamento de Paleontología, Facultad de Ciencias Geológicas, Universidad Complutense de Madrid, Madrid, Spain

José M. Bermúdez de Castro

Affiliation Centro Nacional de Investigación sobre la Evolución Humana, Burgos, Spain

Eudald Carbonell

Affiliation Institut Català de Paleoecologia Humana i Evolució Social, Àrea de Prehistòria, Universitat Rovira i Virgili, Tarragona, Spain

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MD LJA JMP. Performed the experiments: MD LJA. Analyzed the data: MD LJA. Contributed reagents/materials/analysis tools: MD LJA JMP APG. Wrote the paper: MD LJA JMP AIO. Obtained permission for site excavation: JLA JMB EC. Provided sample locations: APG AIO.