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11. References
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Sawada, Y. et al. (2006). The Ages and Geological Backgrounds of Miocene Hominoids Nacholapithecus, Samburupithecus, and Orrorin from Kenya. In: Ishida, H., Tuttle, R., Pickford, M., Ogihara, N., Nakatsukasa, M. (eds) Human Origins and Environmental Backgrounds. Developments in Primatology: Progress and Prospects. Springer, Boston, MA . https://doi.org/10.1007/0-387-29798-7_6
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