1 Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, D-04103 Leipzig, Germany; marjolein_online@hotmail.com.
2 Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, D-04103 Leipzig, Germany; Department of Archaeology, School of Culture and Society, Aarhus University, DK-8270 Højbjerg, Denmark;
3 Institute of Geosciences, University of Mainz, D-55128, Mainz, Germany;
4 Department of Archaeology and Anthropology, University of Cambridge, Cambridge CB2 3DZ, United Kingdom;
5 BioArCh, Department of Archaeology, University of York, York YO10 5DD, United Kingdom;
6 Department of Chemistry, University of York, York YO10 5DD, United Kingdom;
7 Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, D-04103 Leipzig, Germany;
8 Center for Isotope Research, Groningen University, 9747 AG Groningen, The Netherlands; Faculty of Archaeology, Leiden University, 2333 CC, Leiden, The Netherlands.