1. Department of Anthropology, University of Pittsburgh, WWPH 3302, S. Bouquet St , Pittsburgh, PA 15260, USA
2. Department of Anthropology, Washington University in St. Louis, McMillan Hall, 1 Brookings Dr , Saint Louis, MO 63130, USA
3. Department of Anthropology, University of Tennessee , Knoxville, TN, USA
4. Department of Archaeology, National Museums of Kenya , Nairobi, Kenya
5. Department of Asian and North African Studies, Ca’Foscari University of Venice , Venice, Italy
6. Department of Archaeology, Max Planck Institute of Geoanthropology , Jena, Germany
7. Faculty of Archaeology, University of Warsaw , Warsaw, Poland
8. Faculty of Arts, Masaryk University , Brno, Czech Republic
9. School of Archaeology, Climate Change and History Research Initiative, Princeton University , Princeton, NJ 08544, USA
10. Department of Anthropology, University of North Carolina at Charlotte , Charlotte, NC, USA
11. Kakapel National Monument, National Museums of Kenya , Amagoro, Kenya
12. Cleveland Museum of Natural History , Cleveland, OH, USA
13. Department of Anthropology, Stony Brook University , Stony Brook, NY, USA
14. School of Life Sciences, Fudan University , Shanghai, People's Republic of China
15. Department of Earth Sciences, National Museums of Kenya , Nairobi, Kenya
16. School of Social Science, University of Queensland , Brisbane, Australia
17. Griffith Sciences, Griffith University , Brisbane, Australia