About the Authors

Riaan F. Rifkin

riaanrifkin@gmail.com

Affiliations Institute for Archaeology, History, Culture and Religion, University of Bergen, Bergen, Norway, Evolutionary Studies Institute, University of the Witwatersrand, Johannesburg, South Africa

Laure Dayet

Affiliation Centre National de la Recherche Scientifique, Unité Mixte de Recherche, University of Bordeaux, Pessac, France

Alain Queffelec

Affiliation Centre National de la Recherche Scientifique, Unité Mixte de Recherche, University of Bordeaux, Pessac, France

Beverley Summers

Affiliation Photobiology Laboratory, Department of Pharmacy, University of Limpopo, Medunsa, South Africa

Marlize Lategan

Affiliation Photobiology Laboratory, Department of Pharmacy, University of Limpopo, Medunsa, South Africa

Francesco d’Errico

Affiliations Centre National de la Recherche Scientifique, Unité Mixte de Recherche, University of Bordeaux, Pessac, France, Evolutionary Studies Institute, 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: RFR FDE LD AQ BS. Performed the experiments: RFR ML BS LD AQ. Analyzed the data: AQ LD FDE RFR ML BS. Contributed reagents/materials/analysis tools: AQ LD BS ML. Wrote the paper: RFR FDE AQ LD.