Thackeray JF. Alpha and sigma taxonomy of Lystrosaurus murrayi and L. declivis, Triassic dicynodonts (Therapsida) from the Karoo Basin, South Africa. S. Afr. J. Sci. [Internet]. 2019 Mar. 27 [cited 2024 Nov. 22];115(3/4). Available from: https://sajs.co.za/article/view/6164