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Guerin, C.; Pickford, M. 2005. Ancylotherium cheboitense nov. sp., nouveau Chalicotheriidae (Mammalia, Perissodactyla) du Miocène supérieur des Tugen Hills (Kénya). Comptes Rendus Palevol 4 (3): 225-234, 1 fig, 1 tab, 1 Pl [. doi.org/10.1016/j.crpv.2004.10.005]
Guerin, C.; Pickford, M. 2003. Ougandatherium napakense nov.gen. nov.sp., le plus ancien Rhinocerotidae Iranotheriinae d’Afrique. Annales de Paleontologie 89: 1-35, figs. 1-9, tables 1-11.
Nakaya, H.; Pickford, M.; Yasui, K.; Nakano, Y. 1987. Additional large mammalian fauna from the Namurungule formation, Samburu Hills, Northern Kenya. African Study Monographs Supplementary issue 5: 79-129.
Pickford, M. 1986. Cainozoic paleontological sites of Western Kenya. Münchner Geowissenschaftliche Abhandlungen, Reihe A: Geologie und Paläontologie 8: 1-151.
Bishop, W.W.; Pickford, M.; Hill, A. 1975. New evidence regarding the Quaternary geology, archaeology and hominids of Chesowanja, Kenya. Nature 258 (20 November): 204-208.






