1. Center for the Advanced Study of Hominid Palaeobiology; Department of Anthropology; The George Washington University; 2110 G Street NW Washington, DC 20052 USA
2. Department of Earth Sciences; Memorial University of Newfoundland; St John's, NL A1B 3X5 Canada
3. Human Origins Program, National Museum of Natural History; Smithsonian Institution; Washington, DC 20560 USA
4. School of Social Science, Archaeology Program; University of Queensland; Michie Building (9) Brisbane QLD 4072 Australia
5. Ministry of Tourism, Wildlife, and Culture; Tourism House, Private Bag 326 Lilongwe 3 Malawi