After Carroll, 1988

<==o †Gorgonopsia Lydekker, 1890 [non Seeley, 1895?] sensu Carroll, 1988 (gorgonopsit)
   `--o †Gorgonopsidae Lydekker, 1890
      |?-o †Aelurognathus Haughton, 1924 [Dixeya; Lycaenoides]
      |  |-- †A. serratidens
      |  `-- †A. minor [Lycaenoides]
      |?-o †Aelurosaurus Owen, 1881 [Aelurosauroides; Aelurosauropsis; Arctognathus]
      |  |-- †A. angusticeps Broom
      |  |?- †A. breviceps
      |  |?- †A. curvimola [Arctognathus curvimola?]
      |  |-- †A. felinus Owen
      |  |-- †A. striatidens Broom
      |  |?- †A. tenuirostris
      |  `-- †A. whaitsi Broom
      |?- †Aloposaurus gracilis Huene, 1937 (non Broom, 1910) [Aloposauroides]
      |?-o †Arctognathus Haughton, 1924 [Lycosaurus; Lycaenodontoides; Arctognathoides]
      |  |-- †A. whaitsi Haughton, 1924 (non Owen, 1876)
      |  |?- †A. pardalis [Lycosaurus pardalis]
      |  `?- †A. curvimola
      |?- †Arctosuchus tigrinus (Owen, 1876) Broom, 1911 [Lycosaurus tigrinus Owen, 1876]
      |?-o †Arctops Watson, 1914 [?Pardocephalus, Smilesaurus]
      |  |-- †A. ferox
      |  |-- †A. kitchingi
      |  |-- †A. watsoni Brink & Kitching, 1953
      |  |-- †A. willistoni Watson, 1914
      |  `-- †A. nyassaensis
      |?-o †Broomisaurus Joleand, 1920 (nom. nov. pro Scymnorhinus Broom. 1914)
      |  |-- †B. planiceps (Broom, 1913) Joleand, 1920
      |  `-- †B. rubidgei Broom, 1940
      |?- †Cephalicustroidus
      |?- †Cerdodon tenuidens Broom, 1915
      |?-o †Cerdorhinus Broom, 1936 [?Galerhynchus Broom, 1936]
      |  |-- †C. parvidens
      |  `-- †C. rubidgei
      |?-o †Clelandina Broom, 1948 [Dragocephalus Brink & Kitching, 1953]
      |  |-- †C. majora
      |  |-- †C. maximus
      |  |-- †C. rubidgei Broom, 1948
      |  `-- †C. scheepersi
      |?-o †Dinogorgon Broom, 1936 [Tigrisaurus Broom & George, 1950]
      |  |-- †D. laticeps (Broom, 1940) Watson & Romer, 1956
      |  |-- †D. oudebergensis
      |  |-- †D. pricei
      |  |-- †D. quinquemolaris
      |  `-- †D. rubidgei Broom, 1936
      |?- †Eoarctops Haughton, 1929
      |?- †Galesuchus Haughton, 1915
      |?-o †Gorgonops Haughton, 1929 [Pachyrhinos; Gorgonocephalus; Leptotrachelus; Chiwetasaurus; Scymnognathus]
      |  |-- †G. longifrons
      |  |-- †G. torvus
      |  |-- †G. whaitsi [Scymnognathus whaitsi]
      |  `-- †G. eupachygnathus [Leptotrachelus eupachygnathus]
      |?- †Leontocephalus intactus
      |?-o †Lycaenops [Lycaenoides; Tigricephalus; ?Tangagorgon]
      |  |-- †L. angusticeps [= Alopecognathus angusticeps??; Scymnognathus angusticeps??]
      |  |-- †L. ornatus
      |  |-- †L. kingwilli
      |  |-- †L.? minor
      |  `-- †L.? tenuirostris
      |?- †Paragalerhinus
      |?- †Scylacognathus parvus
      |?- †Sycosaurus
      |--o †Gorgonopsinae Sigogneau, 1970
      |  |-- †Sauroctonus progressus (Hartmann-Weinberg, 1938)
      |  `-- †Scylacops
      |--o †Rubidgeinae Sigogneau, 1970
      |  |-- †Broomicephalus
      |  |-- †Niuksenitia sukhonensis Tatarinov, 1977a
      |  |-- †Prorubidgea
      |  `-- †Rubidgea
      `--o †Inostranceviinae Sigogneau-Russell, 1989
         |-- †Pravoslavleria parva (Provoslavlev, 1927a)
         `--o †Inostrancevia Amalitskii, 1922
            |-- †I. alexandri Amalitskii, 1922
            |-- †I. latifrons Provoslavlev, 1927a
            `-- †I. uralensis Tatarinov, 1974

Reference(s):

Special thanks to:

Jos H. M. Dols, for gathering additional information and species.