Figure 9 in A new traversodontid cynodont from the Santa Maria Formation (Ladinian-Carnian) of southern Brazil, with a phylogenetic analysis of Gondwanan traversodontids

Figure 9. Changing pattern in the postcanines of traversodontids. The central position of the transverse crest in the upper postcanines (arrow, ps) is plesiomorphic for Traversodontidae because it is also present in Trirachodon and Diademodon. The anterior position of the transverse crest is an autoapomorphy of Andescynodon. See text for more details.Published as part of Abdala, F. & Ribeiro, A. M., 2003, A new traversodontid cynodont from the Santa Maria Formation (Ladinian-Carnian) of southern Brazil, with a phylogenetic analysis of Gondwanan traversodontids, pp. 529-545 in Zoological Journal of the Linnean Society 139 (4) on page 538, DOI: 10.1111/j.1096-3642.2003.00096.x, http://zenodo.org/record/543921