1. Center for the Study of Human Origins, Department of Anthropology, New York University, New York, NY, USA
2. Institute of Human Origins, Arizona State University, Tempe, AZ, USA
3. School of Human Evolution and Social Change, Arizona State University, Tempe, AZ, USA
4. National Museums of Tanzania, Dar es Salaam, Tanzania
5. Department of Archaeology and Heritage Studies, University of Dar es Salaam, Dar es Salaam, Tanzania