Moore, C. N., Thackeray, J. F., Hublin, J.-J., & Skinner, M. M. (2016). Premolar root and canal variation in South African Plio-Pleistocene specimens attributed to Australopithecus africanus and Paranthropus robustus. Journal of Human Evolution, 93, 46-62. doi:10.1016/j.jhevol.2015.12.002.