After Rubidge & Sidor, 2001, (partly) Sidor & Smith, 2004, and Botha, Abdala & Smith, 2007

<==o Cynodontia Owen, 1861 (cynodonts; kynodontit (“koiranhampaiset”))
   |-- †Charassognathus gracilis Botha, Abdala & Smith, 2007
   `--+--+-- †Dvinia prima Amalitskii, 1922 [Permocynodon sushkini Woodward, 1932] [Dviniidae Tatarinov, 1968]
      |  `--o †Procynosuchidae Broom, 1938 [paraphyletic?]
      |     |-- †Uralocynodon tverdokhlebovae Tatarinov, 1987
      |     |-- †Parathrinaxodon
      |     `-- †Procynosuchus delaharpeae [Cyrbasiodon; Galecranium, Galeophrys, Leavachia, Mygalesaurus, Nanictosuchus, Protocynodon; Scalopocynodon gracilis (Brink, 1961)]
      |?- †Madysaurus sharovi Tatarinov, 2005 [Madysauridae Tatarinov, 2005]
      `--o Epicynodontia Hopson & Kitching, 2001
         |?- †Cromptodon mamiferoides Bonaparte, 1972 [Cromptodon mammiferoides (lapsus calami)]
         |?- †Bolotridon frerensis
         |--o †Galesauridae Lydekker, 1890 sensu Sidor & Smith, 2004
         |  |-- †Cynosaurus suppostus [Cyanosaurus (lapsus calami?); Cynosuchus]
         |  `--+-- †Progalesaurus lootsbergensis Sidor & Smith, 2004
         |     `-- †Galesaurus planiceps
         `--+?- †Platycraniellus elegans [Platycranion]
            |--o †Thrinaxodontidae
            |  |-- †Nanocynodon seductus Tatarinov, 1968
            |  |-- †Thrinaxodon liorhinus Seeley, 1894 [?Nythosaurus]
            |  `--o †Nanictosaurus [Notictosaurus (lapsus calami)] U.Perm. SAf.
            |     |-- †N. kitchingi
            |     |-- †N. robustus [=? N. kitchingi]
            |     `-- †N. rubidgei [=? N. kitchingi]
            `-- Eucynodontia (advanced cynodonts and mammals)

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