1. Department of Geography and Anthropology Louisiana State University Baton Rouge Louisiana USA
2. Evolutionary Studies Institute, University of the Witwatersrand WITS South Africa
3. Laboratori di Antropologia, Dipartimento di Biologia Università degli Studi di Firenze Florence Italy
4. Department of Mathematics and Statistics Loyola University Chicago Chicago Illinois USA
5. Center for the Study of Human Origins, Department of Anthropology New York University New York New York USA
6. New York Consortium in Evolutionary Primatology New York New York USA
7. Department of Human Evolution Max Planck Institute for Evolutionary Anthropology Leipzig Germany