Helm, C. W., H. C. Cawthra, J. C. de Vynck, M. G. Lockley, R. T. McCrea, and J. Venter. “The Pleistocene Fauna of the Cape South Coast Revealed through Ichnology at Two Localities”. South African Journal of Science, vol. 115, no. 1/2, Jan. 2019, doi:10.17159/sajs.2019/5135.