After Kammerer & Angielczyk, 2009, and Botha-Brink & Angielczyk, 2010

<==o †Dicynodontia Owen, 1859 sensu Modesto, Rubidge & Welman, 1999 (from Modesto & Rubidge, 2000)
   |--o †Eodicynodon [Eodicynodontoidea: Eodicynodontidae
   |  |-- †E. oosthuizeni
   |  `?- †E. oelofseni [a basal anomodont (Botha-Brink & Angielczyk, 2010)]
   `--+-- †Colobodectes cluveri Modesto, Rubidge, Visser & Welman, 2003
      `--+--o †Pylaecephalidae van Hoepen, 1934 sensu Kammerer & Angielczyk, 2009 [Pylaecephalinae van Hoepen, 1934; Diictodontidae; Robertoidea Cluver & King, 1983; Robertiidae Cluver & King, 1983; paraphyletic Diictodontia in partim; Diictodontidae]
         |  |?- †Anomodon
         |  |--o †Robertia Boonstra, 1948
         |  |  |-- †R. broomina
         |  |  `-- †R. sp.
         |  `--o †Diictodon Broom, 1913 [Pylaecephalus van Hoepen, 1934]
         |     |-- †D. feliceps (Owen, 1876) Cluver & Hotton, 1981 [Dicynodon ictidops Broom, 1913; Pylaecephalus ictidops (Broom) van Hoepen, 1934; Diictodon ictidops (Broom)]
         |     |-- †D. galeops
         |     |-- †D. grimbeeki
         |     |-- †D. palustris
         |     |-- †D. psittacops
         |     `-- †D. parringtoni
         `--+-- †Brachyprosopus broomi
            |--o †Eumantelliidae Broom, 1935 sensu Kammerer & Angielczyk, 2009 [Eumantellidae Broom, 1935; Pristerodontinae Toerien, 1953; Parringtoniellinae Toerien, 1953; Pristerodontidae Cluver & King, 1983; Pristerodontidae King, 1988]
            |  |?- †Emyduranus
            |  |?- †Eurychororhinus
            |  |?- †Storthyggnathus
            |  |?- †Synostocephalus
            |  `--o †Pristerodon Huxley, 1868 [Eumantellia Broom, 1935]
            |     |-- †P. mackayi Huxley, 1868 [Eumantellia mirus Broom, 1935]
            |     `-- †P. whaitsi
            `--+-- †Endothiodontia Owen, 1876 sensu  Modesto, Rubidge & Welman, 2002, and Kammerer & Angielczyk, 2009 [Endothiodontoidea Owen, 1876 (non Lydekker, 1890)]
               `--o †Therochelonia Seeley, 1894 sensu Kammerer & Angielczyk, 2009
                  |-- †Emydopoidea van Hoepen, 1934 sensu Cluver & King, 1983 [paraphyletic Diictodontia in partim; Kingorioidea King, 1988]
                  `--o †Bidentalia Bain, 1845 vide Owen, 1876 sensu Kammerer & Angielczyk, 2009 [“Bidentals” Bain, 1845]
                     |?- †Elph borealis Kurkin, 1999
                     |?- †Interpresosaurus blomi Kurkin, 1999
                     |?- †Katumbia parringtoni Angielczyk, 2007
                     |?- †Propelanomodon devilliersi
                     |-- †Cryptodontia Owen, 1860 sensu Kammerer & Angielczyk, 2009
                     `-- †Dicynodontoidea Cope, 871 sensu Cluver & King, 1981 and Kammerer & Angielczyk, 2009

Dicynodontia incertae sedis:

Abajudon kaayai Angielczyk, Huertas, Smith, Tabor, Sidor, Steyer, Tsuji & Gostling, 2014; M.Perm. EAf.
    †BrachyuraniscusBroiliusCerataelurusCompsodonCryptocynodonEmydorhinusEosimopsHaughtonianaHeuneusKoupiaNewtonellaParringtoniellaProdicynodon beaufortensisTaognathus megalodon

After Modesto, Rubidge & Welman, 1999 (from Modesto & Rubidge, 2000), Modesto, Rubidge & Welman, 2002, and Modesto, Rubidge, Visser & Welman, 2003

<==o †Dicynodontia
   |--o †Eodicynodontoidea
   |  `--o †Eodicynodontidae
   |     `-- †Eodicynodon
   `--+-- †Colobodectes
      `--+--o †Endothiodontoidea
         |  `--o †Endothiodontidae
         |     |?- †Pachytegos
         |     |-- †Chelyodontops
         |     `--+-- †Lanthanostegus
         |        `-- †Endothiodon
         `--+-- †Pristerodontia
            |-- †Diictodontia
            `--o †Kingorioidea
               `--o †Kingoriidae
                  |-- †Kingoria
                  `-- †Kombusia

After Cox 1998

<==o †Dicynodontia Owen, 1859
   |--o †Eodicynodontoidea
   |  `--o †Eodicynodontidae
   |     `-- †Eodicynodon
   `--+-- †Colobodectes
      |--+-- Dicynodontoidea
      |  `--o †Robertoidea
      |     `--o Robertiidae
      |        |?- †Anomodon
      |        |-- †Robertia
      |        `-- †Diictodon
      `--+--o †Endothiodontoidea
         |  |--o †Pristerodontidae
         |  |  |-- †Emyduranus
         |  |  |-- †Eurychororhinus
         |  |  |-- †Pristerodon
         |  |  |-- †Storthyggnathus
         |  |  `-- †Synostocephalus
         |  `--o †Endothiodontidae
         |     |?- †Pachytegos
         |     |-- †Chelyodontops
         |     `--+-- †Lanthanostegus
         |        `-- †Endothiodon
         `--o †Emydopoidea
            |--o †Emydopidae
            |  |?- †Emydorhynchus
            |  |-- †Emydops
            |  |-- †Myosauroides
            |  `-- †Palemydops
            |--o †Cistecephalidae
            |  |-- †Cistecephaloides
            |  |-- †Cistecephalus
            |  `-- †Kawingasaurus
            |--o †Myosauridae
            |  `-- †Myosaurus
            `--o †Kingoriidae
               |-- †Kingoria
               `-- †Kombusia

Reference(s):