About the Authors

Paola Villa

villap@colorado.edu

Affiliations University of Colorado Museum, Boulder, Colorado, United States of America, School of Geography, Archaeology and Environmental Studies, University of the Witwatersrand, Johannesburg, South Africa, Istituto Italiano di Paleontologia Umana, Rome, Italy

Luca Pollarolo

Affiliations School of Geography, Archaeology and Environmental Studies, University of the Witwatersrand, Johannesburg, South Africa, Laboratoire Archéologie et Peuplement de l’Afrique, Department of Genetics and Evolution, University of Geneva, Geneva, Switzerland

Ilaria Degano

Affiliation Dipartimento di Chimica, Università di Pisa, Pisa, Italy

Leila Birolo

Affiliation Dipartimento di Scienze Chimiche, Complesso Universitario Monte S. Angelo, Napoli, Italy

Marco Pasero

Affiliation Dipartimento di Scienze della Terra, Università di Pisa, Pisa, Italy

Cristian Biagioni

Affiliation Dipartimento di Scienze della Terra, Università di Pisa, Pisa, Italy

Katerina Douka

Affiliation Research Lab for Archaeology and the History of Art, University of Oxford, Oxford, OX1 3QY, England

Roberto Vinciguerra

Affiliation Dipartimento di Scienze Chimiche, Complesso Universitario Monte S. Angelo, Napoli, Italy

Jeannette J. Lucejko

Affiliation Dipartimento di Chimica, Università di Pisa, Pisa, Italy

Lyn Wadley

Affiliation Evolutionary Studies Institute, Centre of Excellence, University of the Witwatersrand, Johannesburg, South Africa

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PV. Performed the experiments: PV LP ID LB MP CB KD RV JJL. Analyzed the data: PV LP ID LB MP CB KD RV JJL. Contributed reagents/materials/analysis tools: ID LB MP CB KD RV JJL LW. Wrote the paper: PV LP ID LB MP CB KD LW.