Bernissartia_fagesiiLeidyosuchus_formidabilisAlbertochampsa_langstoniAlligator_mississippiensisAllognathosuchus_mookiBrachychampsa_montanaBrachychampsa_sealeyiDiplocynodon_hantoniensisOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Williamson_1996a