After O'Leary, 1998

Family -level taxonomy of Cete, after McKenna & Bell, 1997

Family -level taxonomy of Cete, after Carroll, 1988

<==o Cete sensu O'Leary, 1998
   |?- †Olsenia
   |-- †Andrewsarchus mongoliensis
   `--+--o †Triisodontidae [Arctocyonidae: Triisodontinae]
      |  |-- †Goniacodon
      |  `--+-- †Eoconodon copanus
      |     `--+-- †Triisodon
      |        `-- †Stelocyon arctylos
      `--+?- †Microclaenodon
         `--+-- Mesonychia [Acreodi]
            `-- Cetacea (valaat)

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