1. Department of Earth Sciences, Royal Holloway University of London, Egham, UK
2. DANTE Laboratory for the Study of Diet and Ancient Technology, Sapienza University of Rome, Rome, Italy
3. Bioarchaeology Service, Museo delle Civiltà, Rome, Italy
4. Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
5. Institute of Geosciences, Goethe University Frankfurt, Frankfurt am Main, Germany