[1] CNRS, AASPE Archeozool Archeobot Soc Prat Environnement, MNHN, F-75005 Paris, France
[2] Univ Autonoma Barcelona, Fac Lletres, Dept Prehist, Bellaterra, Barcelona, Spain
[3] Croatian Acad Sci & Arts, Inst Quaternary Palaeontol & Geol, Ante Kovacica 5, Zagreb 10000, Croatia
[4] Univ York, BioArCh, Dept Archaeol Environm Bldg, York YO10 5NG, N Yorkshire, England
[5] Univ York, Dept Chem, York YO10 5NG, N Yorkshire, England