After Wyss & Flynn, 1993, McKenna & Bell, 1997, Alroy, 2002, and Wesley-Hunt & Flynn, 2005

<==o †Viverravidae Wortman & Matthew, 1899 [incl. Quercygalidae Kretzoi, 1945; Didymictidae Flynn & Galiano, 1982] [Viverraroidea Wortman & Matthew 1899]
   |?- †Pappictidops Chiu & Li, 1977; E.Pal. EAs.
   |--o †Viverravinae Wortman & Matthew, 1899 [Viverravidae Wortman & Matthew, 1899; Viverravinae Matthew, 1909; Viverravini Kalandadze & Rautian, 1992; Viverravina Kalandadze & Rautian, 1992]
   |  |-- †Pristinictis connata Fox & Youzwyshyn, 1994
   |  |--o †Simpsonictis MacIntyre, 1962; E.-L.Pal. NAm.
   |  |  |-- †S. jaynanneae Rigby,jr., 1980
   |  |  |-- †S. pegus Gingerich & Winkler, 1985
   |  |  `-- †S. tenuis (Simpson, 1935) [Didymictis tenuis Simpson, 1935; Protictis tenuis (Simpson, 1935)]
   |  |--o †Viverravus Marsh, 1872 [Triacodon Marsh, 1871] L.Pal.-M-Eoc. NAm., ?E.Eoc.-L.Eoc. Eu.
   |  |  |-- †V. acutus Matthew & Granger, 1915
   |  |  |-- †V. gracilis Marsh, 1872
   |  |  |-- †V. minutus Wortman, 1901
   |  |  |-- †V. politus Matthew & Granger, 1915
   |  |  |-- †V. rosei Polly, 1997
   |  |  `-- †V. sicarius Matthew, 1909b
   |  |?- †Quergygale angustidens (Filhol, 1872) Kretzoi, 1945 [Viverra angustidens Filhol, 1872; Humbertia Beaumont, 1966] [incl. Viverra hastingsae Davies, 1884; “Cynodon” helveticus (Rütimeyer, 1862)] [a non-carnivoran carnivoromorphan (Wesley-Hunt & Werdelin, 2005)]
   |  |-- †Simamphicyon helveticus (Pictet & Humbert 1869) Viret, 1942; M.Eoc.-?L.Eoc. Eu.
   |  |?-o †Tapocyon Stock, 1934 [taxonomic history] [a non-carnivoran carnivoromorphan (Wesley-Hunt & Werdelin, 2005)]
   |  |  |-- †T. dawsonae Wesley & Flynn, 2003 [taxonomic history]
   |  |  `-- †T. robustus (Peterson, 1919) [taxonomic history]
   |  `?- †Plesiomiacis progressus (Stock, 1935) Simpson, 1945 [Viverravus (Plesiomiacis) progressus Stock, 1935] [synon. of Procynodictis Wortman & Matthew 1899] [a non-carnivoran carnivoromorphan (Wesley-Hunt & Werdelin, 2005)]
   |--o †Ictidopappinae Van Valeb, 1969 [Ictidopappini Van Valen, 1969; Ictidopappinae McKenna & Bell, 1997]
   |  `-- †Ictidopappus mustelinus Simpson, 1935; E.Pal. NAm.
   `--o †Didymictinae Flynn & Galiano, 1982 [Didymictida Flynn & Galiano, 1982; Didymictidae Flynn & Galiano, 1982; Didymictinae McKenna & Bell, 1997]
      |-- †Raphictis gausion Gingerich & Winkler, 1985
      |--o †Didymictis Cope, 1875
      |  |-- †D. altidens Cope, 1880
      |  |-- †D. leptomylus Cope, 1880
      |  |-- †D. protenus (Cope, 1874) [Limnocyon protenus Cope, 1874; Didymictis protenus Cope, 1875; Didymictis curtidens Cope, 1882; Didymictis protenus Matthew, 1909; 1915; 1937; Polly, 1997; Gunnell, 1998]
      |  |-- †D. proteus Simpson, 1937 [Didymictis protenus proteus Simpson, 1937; Didymictis dellensis Dorr, 1952; Protictis dellensis Gingerich & Winkler, 1985; Didymictis proteus Polly, 1997]
      |  `-- †D. vancleveae Robinson, 1966 
      |--o †Bryanictis MacIntyre, 1966 [Bryanictis MacIntyre, 1966Protictis Matthew, 1937; Mckenna & Bell, 1997]
      |  |-- †B. microlestes (Simpson, 1935) [Didymictis microlestes Simpson, 1935]
      |  `-- †B. paulus Meehan & Wilson, 2002
      `--o †Protictis Matthew, 1937 [Didymictis (Protictis) Matthew, 1937; Protictis MacIntyre, 1966; Protictoides Flynn & Galiano, 1982; Intyrictis Gingerich & Winkler, 1985]
         |-- (Protictoides) aprophatos Flynn & Galiano, 1982
         |-- †P. paralus Holtzman, 1978
         |-- †P. simpsoni Meehan & Wilson, 2002
         |-- †P. minor Meehan & Wilson, 2002
         `--+-- †P. haydenianus (Cope, 1882) [Didymictis haydenianus Cope, 1882; Didymictis primus Cope, 1884] [type]
            `--+-- †P. agastor
               `-- †P. dellensis (Dorr, 1952) Gingerich & Winkler, 1985

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