1. Institute for Archaeology, History, Culture and Religion, University of Bergen, Øysteinsgate 3, 5007 Bergen, Norway.
2. Institute for Human Evolution, University of the Witwatersrand, Johannesburg, South Africa.
3. Université de Bordeaux, UMR 5199 CNRS, Avenue des Facultés, 33405 Talence, France.
4. Centre de Recherche et de Restauration des Musées de France, UMR 171 CNRS, Palais du Louvre, 14 Quai François Mitterrand, 75001 Paris, France.
5. Centre for Archaeological Science, School of Earth and Environmental Sciences, University of Wollongong, Wollongong 2522, Australia.
6. Department of Earth Science, University of Bergen, Allégaten 41, 5007 Bergen, Norway.