After Polly, 1996, McKenna & Bell, 1997 and Gunnell, 1998

<==o †Creodonta Cope, 1875 (creodonts; kreodontit)
   |?- †Prionogale
   |?- †Hyaenodontipus
   |?- †Koholia [Koholiinae]
   `--+?- †Mechaeroidinae [Oxyaenidae?: Mechaeroidinae sensu Gunnell, 1998; Hyaenodontidae: Limnocyoninae: Mechaeroidini sensu McKenna & Bell, 1997]
      |-- †Oxyaenidae
      `-- †Hyaenodontidae Leidy, 1869 [non Trouessart, 1885]

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