1. Department of Archaeology and Cultural History, NTNU Vitenskapsmuseet, Norwegian University of Science and Technology, 7491 Trondheim, Norway
2. Institute of Archaeology, National Academy of Sciences of Ukraine, 12 Heroiv Stalingrada Ave., 04210 Kyiv, Ukraine
3. Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, PO Box 1066, Blindern, 0316 Oslo, Norway
4. McDonald Institute for Archaeological Research, Department of Archaeology, University of Cambridge, Downing Street, Cambridge CB2 3ER, UK
5. Department of Natural History, The University Museum, University of Bergen, PO Box 7800, 5020 Bergen, Norway