Ronald Alexander Steiner¹, Tyrone O Rooney², Guillaume Girard¹, Liam Peterson¹, Rayn Phillips¹, John W Kappelman³, Nicholas W Rogers⁴ and Nicholas Mariita⁵, (1)Michigan State University, East Lansing, MI, United States, (2)Department of Earth and Environment Sciences, Michigan State University, East Lansing, MI, United States, (3)University of Texas at Austin, Anthropology, Austin, TX, United States, (4)Open Univ, Milton Keynes, United Kingdom, (5)Dedan Kimathi University of Technology, Nyeri, Kenya