1. School of Archaeology, University College Dublin, Dublin, Ireland
2. Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
3. The Discovery Programme, Dublin, Ireland
4. School of Geography, Archaeology and Palaeoecology, Queen's University Belfast, Belfast, UK
5. Department of Chemistry G. Ciamician, Alma Mater Studiorum Bologna University, Bologna, Italy