Thackeray, J. Francis. “Do Specimens Attributed to Lystrosaurus Murrayi and L. Declivis (Triassic Therapsida) Represent One Species?”. South African Journal of Science 114, no. 3/4 (March 27, 2018): 2. Accessed November 22, 2024. https://sajs.co.za/article/view/4826.