After McKenna & Bell, 1997, and Peláez-Campomanes, 2000

<==o †Theridomyidae Alston, 1876 [taxonomic history]
   |-- †Masillamys Tobien, 1954; ?L.Eoc.-M.Eoc. Eu.
   |--o †Pseudosciurinae Winge, 1887 [taxonomic history]
   |  |-- †Suevosciurus Dehm, 1937 [incl. Microsuevosciurus Hartenberger, 1973] M.Eoc.-Olig. Eu.
   |  |--o †Treposciurus Schmidt-Kittler, 1970; M.-U.Eoc. Eu.
   |  |  |-- †T. preecei
   |  |  |--o †T. gardneri -group
   |  |  |  `-- †T. gardneri
   |  |  `--o †T. mutabilis -group
   |  |     |-- †T. helveticus
   |  |     |-- †T. mutabilis Schmidt-Kittler, 1970
   |  |     |-- †T. intermedius
   |  |     `-- †T. manentis Peláez-Campomanes, 2000
   |  |-- †Pseudosciurus Hensel, 1856; U.Eoc.-Olig. Eu.
   |  `--o †Tarnomys Hartenberger & Schmidt-Kittler, 1976; L.Olig. Eu.
   |     `-- †T. quercinus Hartenberger & Schmidt-Kittler, 1976
   |--o †Oltinomyinae Hartenberger, 1971 [taxonomic history]
   |  |-- †Remys Thaler, 1966; M.-U.Eoc. Eu.
   |  |-- †Estellomys Hartenberger, 1971; U.Eoc.Eu.
   |  |-- †Ectropomys Bosma & Schmidt-Kittler, 1972; U.Eoc. Eu.
   |  |-- †Oltinomys Stehlin & Schaub, 1951 [Oltinomys Stehlin, 1941 (nomen nudum); Theridomys (Oltinomys) Stehlin & Schaub, 1951] U.Eoc. Eu.
   |  `-- †Pairomys Thaler, 1966; M.-U.Eoc. Eu.
   |--o †Sciuroidinae Hartenberger, 1971
   |  `-- †Sciuroides Forsyth Major, 1973; M.-U.Eoc. Eu.
   |--o †Adelomyinae Lavocat, 1951 [taxonomic history]
   |  |-- †Proadelomys Hartenberger, 1968 [=? Protadelomys] M.-U.Eoc. Eu.
   |  |-- †Paradelomys Thaler, 1966; M.Eoc.-L.Olig. Eu.
   |  `-- †Adelomys Gervais, 1849; U.Eoc. Eu.
   |--o †Issiodoromyinae Tullberg, 1899 [taxonomic history]
   |  |-- †Elfomys Hartenberger, 1971; M.Eoc.-L.Olig. Eu.
   |  |--o †Pseudoltinomys Lavocat, 1951; M.-U.Eoc. Olig. Eu.
   |  |  `-- †P. gaillardi
   |  |-- †Issiodoromys Bravard, in Gervais, 1952 [taxonomic history] Olig. Eu.
   |  |-- †Bernardia Vianey-Liaud, 1991; M.Eoc. Eu.
   |  `-- †Patriotheridomys Vianey-Liaud, 
   |--o †Theridomyinae Alston, 1876 [taxonomic history]
   |  |-- †Isoptychus Pomel, 1853 [incl. Trechomys Lartet, 1869; Isoptychus (Quercymys) Thaler, 1966] U.Eoc.-Olig. Eu.
   |  |?- †Thalerimys Tobien, 1972; U.Eoc.-?L.Olig. Eu.
   |  |--o †Theridomys Jourdan, 1837; U.Eoc.-U.Olig. Eu.
   |  |  |-- †T. pseudosiderolithicus de Bonis, 1964
   |  |  |-- †T. calafensis Vianey-Liaud & Hartenberger, 1987 [Theridomys sp. cf. T. golpei Adrover, Feist, Ginsburg, Guerin, Hugueney & Moissenet, 1983]
   |  |  |-- †T. golpei Adrover, Feist, Ginsburg, Guerin, Hugueney & Moissenet, 1983
   |  |  |-- †T. major
   |  |  `-- †T. aquatilis
   |  |-- †Taeniodus Pomel, 1853 [taxonomic history] L.Olig. Eu.
   |  |--o †Blainvillimys Gervais, 1848-1852 [Blainvillemys Giebel, 1855; Blainvilleomys Giebel, 1859] Olig. Eu.
   |  |  |-- †B. rotundidens (Schlosser, 1884)
   |  |  |-- †B. langeae
   |  |  |-- †B. civracensis Vianey-Liaud & Ringeade, 1993
   |  |  `-- †B. gousnatensis (Vianey-Liaud, 1976)
   |  `--o †Archaeomys Laizer & Parieu, 1839 [incl. Protechimys Schlosser, 1884; Protechinomys Lydekker, 1885 (unjustified emendation); Monarchaeomys Mayo, 1983; Rhombarchaeomys Mayo, 1983] U.Olig. Eu.
   |     |-- †P. (Monarchaeomys) Mayo, 1983
   |     `-- †P. (Rhombarchaeomys) Mayo, 1983
   `--o †Columbomyinae Thaler, 1966
      |-- †Sciuromys Schlosser, 1884 [incl. Pseudosciuromys Stehlin & Schaub, 1951] Olig. Eu.
      `-- †Columbomys Thaler, 1962; U.Olg. Eu.

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