The holotype of C. brachybuccalis is MUCPv-202. Comahuesuchus is the name-sake of the clade Comahuesuchidae. Sereno et al. (2003) suggested that Comahuesuchus and Anatosuchus are both comahuesuchids,[3] but work by Martinelli and Andrade et al. (2006) has suggested that A. minor is not a comahuesuchid.[4]Comahuesuchus seems instead to be more closely related to Mariliasuchus.
Andrade, M.B.; Bertini, R. J. ; Pinheiro, A. E. P. (2006). Observations on the palate and choanae structures in Mesoeucrocodylia (Archosauria, Crocodylomorpha): phylogenetic implications. Revista Brasileira de Paleontologia, Sociedade Brasileira de Paleontologia9 (3): 323–332.
Sereno, P. C., Sidor, C. A., Larsson, H. C. E., and Gado, B. (2003). A new notosuchian from the Early Cretaceous of Niger. Journal of Vertebrate Paleontology23 (2): 477–482.