1. Palaeoscience, Department of Archaeology and History, La Trobe University, Bundoora, VIC, Australia
2. Geoarchaeology and Archaeometry Research Group, Southern Cross GeoScience, Southern Cross University, Lismore, NSW, Australia
3. Palaeo-Research Institute, University of Johannesburg, Johannesburg, South Africa
4. Department of Anthropology, WA University in St. Louis, St. Louis, MO, USA
5. Institute of Human Origins, School of Human Evolution and Social Change, AZ State University, Tempe, AZ, USA