After McKenna & Bell, 1997, Gunnell & Bartels, 1999, Zonneveld, Gunnell & Bartels, 2000, and Scott, Fox & Youzwyshyn, 2002, with species from Alroy, 2002

<==o †Pantolestidae Cope, 1884 [taxonomic history]
   |?- †Apheliscus [is an apheliscid ungulate]
   |?-o †Paleotomus Van Valen, 1967 [taxonomic history] [treated as cimolestid by McKenna & Bell, 1997]
   |  |-- †P. junior Scott, Fox & Youzwyshyn, 2002
   |  |-- †P. senior (Simpson, 1937) [taxonomic history]
   |  |-- †P. carbonensis Secord, 1998
   |  |-- †P. radagasti (Van Valen, 1978) [taxonomic history] 
   |  `-- †P. milleri Rigby, 1980
   |--o †Pentacodontinae Simpson, 1937 [taxonomic history]
   |  |?- †Protentomodon ursirivalis Simpson, 1928a; U.Paleoc. NA. [treated as cimolestid by McKenna & Bell, 1997]
   |  |--o †Aphronorus Simpson, 1935 [Aphronomus (lapsus calami)]; L.-U.Paleoc. NA.
   |  |  |-- †A. fraudator Simpson, 1935d
   |  |  |-- †A. orieli Gazin, 1969
   |  |  |-- †A. ratatoski Winterfeld, 1982
   |  |  `-- †A. simpsoni Gazin, 1938
   |  |--o †Bisonalveus Gazin, 1956; U.Paleoc. NA.
   |  |  |-- †B. browni Gazin, 1956
   |  |  `-- †B. holtzmani Gingerich, 1983c
   |  |--o †Coriphagus Douglass, 1908 [†Pantomimus Van Valen, 1967] [incl. †Mixoclaenus Matthew & Granger, 1921] L.Paleoc. NA.
   |  |  |-- †C. montanus Douglass, 1908
   |  |  `-- †C. encinensis (Matthew & Granger, 1921) [†Mixoclaenus encinensis Matthew & Granger, 1921); †Coriphagus encinensis Simpson, 1937a, Williamson & Lucas, 1993, Williamson, 1996, and Alroy, 2002]
   |  |--o †Pentacodon Scott, 1892; L.Paleoc. NA.
   |  |  |-- †P. inversus (Cope, 1888) [†Chriacus inversus Cope, 1888; †Pentacodon inversus Scott, 1892, Matthew, 1937, Williamson & Lucas, 1993, Williamson, 1996, and Alroy, 2002]
   |  |  `-- †P. occultus Matthew, 1937
   |  `-- †Amaramnis gregoryi Gazin, 1962; L.Eoc. NA.
   |--o Pantolestinae Cope, 1884 [taxonomic history]
   |  |?- †Propalaeosinopa albertensis Simpson, 1927; M.Paleoc. NA. (nomen dubium, invalid sr. synon. of †Bessoecetor)
   |  |-- †Bessoecetor septentrionalis (Russell, 1929) Simpson, 1936 sensu Scott, Fox & Youzwyshyn, 2002; L.-U.Paleoc. NA. ?U.Paleoc. Eu. [Synonyms]
   |  |--o †Palaeosinopa Matthew, 1901 [taxonomic history]
   |  |  |-- †P. dorri Gingerich, 1980c
   |  |  |-- †P. lutreola Matthew, 1918b [non 1899]
   |  |  |-- †P. incerta Bown & Schankler, 1982
   |  |  |-- †P. simpsoni Van Valen, 1967 [taxonomic history]
   |  |  `--+-- †P. didelphoides (Cope, 1881) [taxonomic history]
   |  |     `-- †P. veterrima Matthew, 1901
   |  |-- †Thelysia artemia Gingerich 1982; U.Paleoc. NA. [a pantolestid?]
   |  |-- †Pagonomus dionysi D.E. Russell, 1964; U.Paleoc. NA.
   |  |-- †Todralestes variabilis Gheerbrant, 1991; U.Paleoc.-L.Eoc. Af.
   |  |--o †Pantolestes Cope, 1872b [incl.? Passalacodon Marsh, 1872; †Anisacodon Marsh, 1872] M.Eoc. EAs. NA.
   |  |  |-- †P. longicaudus Cope, 1872 [†Pantolestes longicaudus Cope, 1872; †Tomitherium longicaudum (Cope); Cope, 1873; †Passalacodon littoralis Marsh, 1872; †Pantolestes longicaudus Cope; Matthew, 1909, Gazin, 1958a, Gazin, 1976, and Alroy, 2002)
   |  |  |-- †P. elegans (Marsh, 1872)
   |  |  |-- †P. natans Matthew, 1909b
   |  |  |-- †P. phocipes Matthew, 1909b
   |  |  `-- †P. intermedius Matthew, 1909b
   |  |-- †Bogdia Dashzeveg & D.E. Russell, 1985; M.Eoc. EAs.
   |  |-- †Chadronia margaretae Cook, 1954 [incl. †Cymaprimadon J. Clark, 1968] U.Eoc. ?As. NA.
   |  |--o †Buxolestes Jaeger, 1970; M.Eoc. Eu.
   |  |  |-- †P. piscator
   |  |  `-- †P. minor
   |  |-- †Bouffinomus Mathis, 1989; U.Eoc. Eu.
   |  |-- †Galethylax blainvillei Gervais, 1850; U.Eoc. Eu.
   |  `-- †Oboia argillaceus Gabunia, 1989; L.Olig. As. [also treated as merialine paroxyclaenid]
   `--o †Dyspterninae Kretzoi, 1943 [taxonomic history]
      |-- †Fordonia Marandat, 1989; L.Eoc. Eu. [non Fordonia Gray, 1842(?) (Serpentes: Colubridae: Homalopsinae)]
      |--o †Cryptopithecus Schlosser, 1890 [incl. †Opsiclaenodon Butler, 1946; †Androconus Quinet, 1965] U.Eoc.-L.Olig. Eu.
      |  |-- †C. siderolithicus
      |  `-- †C. macrognathus
      |--o †Dyspterna Hopwood, 1927; U.Eoc.-L.Olig. Eu.
      |  |-- †D. woodi
      |  `-- †D. helbingi Dal Piaz, 1930
      |--o †Kochictis Kretzoi, 1943; U.Olig. Eu.
      |  `-- †K. centenii
      `-- †Gobipithecus Dashzeveg & D.E. Russell, 1992; L.Olig. As.

Reference(s):