After Wyss & Flynn, 1993, McKenna & Bell, 1997, and Ginsburg & Morales, 1998

<==o Arctoidea Flower (karhumaiset petoeläimet)
   |--o Mustelida Tedford, 1976 [Musteloidea Fischer de Waldheim, 1817]
   |  |?- †Mustelavus priscus Clark, 1936
   |  |?- †Pyctis inamatus Babbitt, 1999
   |  |--+-- Procyonidae (half-bears, raccoons; puolikarhut)
   |  |  `-- Ailuridae Gray, 1843 [Procyonidae: Simocyoninae + Ailurinae] (golden pandas; pikkupandat)
   |  `--+-- †Bavarictis gaimersheimensis Mödden, 1981
   |     |--o †Mustelictis Lange, 1969
   |     |  |-- †M. piveteaui Lange, 1969
   |     |  `-- †M. olivieri de Bonis, 1997
   |     `--+-- †Pseudobassaris riggsi Pohle, 1917
   |        `--+--o †Plesictis Pomel, 1846 [Mustelavus]
   |           |  |?- †“Plesictis” julieni sicaulensis Viret, 1929
   |           |  |-- †P. huilidens Dehm, 1950
   |           |  |-- †P. mayri Dehm, 1950
   |           |  `-- †P. vireti Dehm, 1950
   |           `--o Mustelidae sensu Valenciano et al., 2016
   |              |-- Mustelidae Fischer de Waldheim, 1817 (weasels; näädät)
   |              `--o †Oligobuninae Baskin, 1998 [often treated as basal pinnipedians]
   |                 |--o †Brachypsalis Cope, 1890
   |                 |  |-- †B. hyaenoides Cope, 1881 [Aelurodon hyaenoides]
   |                 |  |-- †B. matutinus Matthew 1924
   |                 |  |-- †B. modicus Matthew, 1918 [Brachypsaloides modicus]
   |                 |  |-- †B. obliquidens Sinclair, 1915
   |                 |  `-- †B. pachycephalus Cope, 1890
   |                 |--o †Megalictis Matthew, 1907 [incl. Aelurocyon Peterson, 1907; Paroligobunis (sensu  Valenciano et al., 2016)]
   |                 |  |-- †M. ferox Matthew, 1907 [Aelurocyon brevifacies Peterson, 1907; Megalictis ferox Hunt & Skolnick, 1996; Aelurocyon ferox Baskin, 1998; Megalictis ferox Matthew; Valenciano et al., 2016]
   |                 |  |-- †M. simplicidens (Peterson, 1907) [Paroligobunis simplicidens (Peterson, 1907); Megalictis simplicidens (Peterson, 1907); Valenciano et al., 2016]
   |                 |  |-- †M. frazieri (Frailey, 1978) [Paroligobunis frazieri (Frailey, 1978); Megalictis frazieri (Frailey, 1978); Valenciano et al., 2016]
   |                 |  `?- †“M.petersoni (Loomis, 1932) [Paroligobunis petersoni Loomis, 1932]
   |                 |--o †Oligobunis Cope, 1881
   |                 |  |-- †O. crassivultus (Cope, 1879) [Ictiocyon crassivultus]
   |                 |  `-- †O. floridanus White, 1947
   |                 |--o †Promartes Riggs, 1942
   |                 |  |-- †P. darbyi (Thorpe, 1921) [Oligobunis darbyi Thorpe, 1921]
   |                 |  |-- †P. gemmarosae (Loomis, 1932) [Oligobunis gemmarosae Loomis, 1932]
   |                 |  |-- †P. lepidus (Matthew, 1907) [Oligobunis lepidus Matthew, 1907]
   |                 |  |-- †P. olcotti Riggs, 1942
   |                 |  `-- †P. vantasselensis (Loomis, 1932) [Oligobunis vantasselensis Loomis, 1932]
   |                 |--o †Potamotherium Geoffroy Saint-Hillaire, 1833
   |                 |  |-- †P. miocenicum Peters, 1868
   |                 |  `-- †P. valletoni Geoffroy Saint-Hillaire, 1833
   |                 `-- †Zodiolestes Riggs, 1942
   `--o Ursida Tedford, 1976
      |?- †Adelpharctos mirus de Bonis, 1971
      |?- †Adracon Filhol, 1884
      |?- †Plesiocyon Schlosser, 1887
      |--+--o †Amphicticeps Matthew & Granger, 1924
      |  |  |-- †A. shackelfordi Matthew & Granger, 1924
      |  |  |-- †A. durog Wang, McKenna & Dashzeveg, 2005
      |  |  `-- †A. makhchinus Wang, McKenna & Dashzeveg, 2005
      |  `--+?- †Allocyon loganensis Merriam, 1930
      |     `-- Pinnipedimorpha Berta, 1991 [Pinnipedia sensu lato] (seals; eväjalkaiset petoeläimet)
      `--o Ursidae Fisher de Waldheim, 1817 sensu Rybczynski, Dawson & Tedford, 2009
         |--o †Amphicynodontinae Simpson 1945 [paraphyletic basal ursoids/ursids??]
         |  |--o †Amphicynodon Filhol, 1881 [Cynodon Aymard 1848; Paracynodon]
         |  |  |?- †A. gracilis
         |  |  |?- †A. speciosus
         |  |  |?- †A. velaunus
         |  |  |?- †A. mongoliensis
         |  |  |?- †A. typicus
         |  |  |?- †A. crassirostris
         |  |  |?- †A. leptorhynchus
         |  |  |?- †A. cephalogalinus
         |  |  |?- †A. helveticus [Cynodon helveticus Rütimeyer, 1862; Humbertia helvetica]
         |  |  `-- †A. teilhardi (Matthew & Granger, 1924) [Cynodon (Pachycynodon) teilhardi Matthew & Granger, 1924; Cynodictis mongoliensis Janovskaja, 1970; Amphicynodon mongoliensis (Janovskaja, 1970)]
         |  |-- †Drassonax harpagops Galbreath, 1953 [an amphicyonid?]
         |  |--o †Kolponomos Stirton, 1960
         |  |  |-- †K. clallamensis Stirton, 1960
         |  |  `-- †K. newportensis Tedford, Barnes & Ray, 1994
         |  `?-o †Parictis Scott, 1893 sensu PaleoDB
         |     |?- †Nothocyon geismarianus (Cope, 1878) Matthew, 1899
         |     |--o †Subparictis Clark & Guensburg, 1972 sensu Wang & Tedford, 1992
         |     |  |-- †S. dakotensis (Clark, 1936) [Parictis dakotensis]
         |     |  |-- †S. parvus (Clark & Beerbower, 1967) [Parictis parvus Clark & Beerbower, 1967]
         |     |  |-- †S. montanus Clark & Guensburg, 1972
         |     |  `-- †S. gilpini Clark & Guensburg, 1972
         |     `--o †Parictis Scott, 1893 [Campylocynodon Chaffee, 1954, Parietis Scott, 1893 [objective synonym], Subparictis Wang & Tedford, 1992]
         |        |-- †P. major (Clark & Guensburg, 1972) [Amphicynodon major]
         |        |-- †P. personi (Chaffee, 1954) [Campylocynodon personi Chaffee, 1954]
         |        `-- †P. primaevus Scott, 1893
         `--+--o †Cephalogale Jourdan, 1862 [8 Old World sp., 3 New World]
            |  |-- †C. meschethense
            |  `-- †C. geoffroyi Filhol, 1879
            `--+--o †Pachycynodon Schlosser, 1887
               |  |-- †P. tenuis
               |  |-- †P. filholi
               |  |-- †P. crassirostris
               |  |-- †P. dubius
               |  |-- †P. boriei
               |  `-- †P. tedfordi Wang & Qiu 2003
               `-- Ursoidea Fisher de Waldheim, 1817 (Flower, 1869) (bear-like carnivores; karhunsukuiset petoeläimet)

After Valenciano, Baskin, Abella, Pérez-Ramos, Álvarez-Sierra, Morales & Hartstone-Rose, 2016

<==o Musteloidea
   |--+-- Mephitidae
   |  `--+-- Procyonidae
   |     `-- Ailuridae
   `--o Total Clade Mustelidae
      |--o †Oligobuninae
      |  |-- †Oligobunis crassivultus
      |  `--+-- †“Megalictispetersoni
      |     `--+-- †Megalictis ferox
      |        `--+-- †Megalictis simplicidens
      |           `-- †Megalictis frazieri
      `--o Mustelidae
         |--+-- Gulo gulo
         |  `-- Mustela putorious
         `--+-- Pekania pennanti
            `--+-- Martes martes
               `--+-- Eira barbara
                  `--+-- Mellivora capensis
                     `-- Taxidea taxus

Reference(s):

  • Valenciano, A., Baskin, J. A., Abella, J., Pérez-Ramos, A., Álvarez-Sierra, M. Á., Morales, J. & Hartstone-Rose, A., 2016: Megalictis, the Bone-Crushing Giant Mustelid (Carnivora, Mustelidae, Oligobuninae) from the Early Miocene of North America.
    –Plos One: Vol. 11, #4, pp. (e0152430) [doi: 10.1371/journal.pone.0152430]

After Rybczynski, Dawson & Tedford, 2009

<==o Arctoidea
   |-- †Mustelavus
   |--+--o Ursidae
   |  |  |-- †Amphicynodon
   |  |  `--+-- †Cephalogale
   |  |     `--+-- †Pachycynodon
   |  |        `-- †Allocyon
   |  `--o Pinnipedia
   |     |-- †Amphicticeps
   |     `--+-- †Potamotherium
   |        |-- †Enaliarctos
   |        `-- †Puijila
   `--o Musteloidea
      |--+--o Procyonidae
      |  |  |-- †Stromeriella
      |  |  `-- †Broiliana
      |  `--o Ailuridae
      |     |-- †Amphictis
      |     `--+-- †Simocyon
      |        `-- Ailuridae (s.s.)
      `--+-- †Bavarictis
         |-- †Mustelictis
         |-- †Pseudobassaris
         `--+-- †Plesictis
            `--+-- †Promartes
               `--o Mustelidae
                  |-- †Plesiogale
                  `--+--+-- †Paragale
                     |  `-- Lontra
                     `--+-- †Kinometaxia Wang et al. 2004
                        `-- Mustela

Reference(s):

  • Rybczynski, N., Dawson, M. R. & Tedford, R. H., 2009: A semi-aquatic Arctic mammalian carnivore from the Miocene epoch and origin of Pinnipedia.
    –Nature: Vol. 458, pp. 1021-1024

After Wang, McKenna & Dashzeveg, 2005 (fig. 17)

<==o Arctoidea
   |--o Ursida
   |  |-- †Amphicticeps
   |  `--+-- †Amphicynodon
   |     `--+--+-- †Cephalogale
   |        |  `-- Ursidea
   |        `--+-- †Pachycynodon
   |           |-- †Allocyon
   |           `-- Pinnipedimorpha
   `--o Mustelida
      |-- †Mustelavus
      `--+--+--o Procyonidae
         |  |  |-- †Mustelavus
         |  |  `-- †Stromeriella
         |  `--+-- †Amphictis
         |     `--+-- †Simocyon
         |        `-- Ailuridae (s.s.)
         `--+-- †Bavarictis
            |-- †Mustelictis
            `--+-- †Pseudobassaris
               `--+-- †Plesictis
                  `--+-- †Promartes [Oligobuninae]
                     |-- †Potamotherium [Oligobuninae]
                     `-- Mustelidae

Reference(s):