After McKenna & Bell, 1997, Rose, Kumar, Rana, Sahni & Smith, 2013, and Miyata & Deméré, 2016

<==o †Tillodonta Marsh, 1875 [taxonomic history]
   `--o †Tillotheriidae Marsh, 1875 [taxonomic history]
      |-- †Deltatherium fundaminis Cope, 1881 [†Lipodectes penetrans Cope, 1881; = Deltatherium fundaminis Cope; Matthew, 1937] L.Paleoc.-?U.Paleoc. NA. [†Deltatheriinae Van Valen, 1988]
      `--o †Tillotheriinae Marsh, 1875 [taxonomic history]
         |-- †Anchilestes impolitus Chiu & Li, 1977; L.Paleoc. EAs. [also treated as anagalid]
         |?- †Basalina basalensis Dehm & Oettingen-Spielberg, 1958; ?L.Eoc.-M.Eoc. SAs. [Tillodonta incertae sedis]
         |?- †Benaius qianshuiensis Wang & Jin, 2004
         |?- †Chungchienia sichuanica Chow, 1963; U.Eoc. EAs. [also treated as taeniodont]
         |?- †Dysnoetodon minuta Zhang [Chang], 1980; L.Paleoc. EAs. [Tillodonta incertae sedis??, treated as bemalambdoid pantodont by McKenna & Bell, 1997]
         |?- †Franchaius Baudry, 1992; L.Eoc. Eu.
         |?- †Interogale datangensis Huang & Zheng 1983; L.Paleoc. EAs.
         |?- †Plethorodon chienshanensis Huang & Zheng, 1987; L.Paleoc. EAs.
         |-- †Lofochaius brachyodus Chow, Chang, Wang & Ting, 1973; L.Paleoc. EAs.
         |-- †Meiostylodon zaoshiensis Wang, 1975; L.Paleoc. EAs.
         |--o †Trogosinae Gazin, 1953 sensu Miyata & Deméré, 2016
         |  |-- †Kuanchuanius shantungensis Chow, 1963
         |  `==o †Trogosus Leidy, 1871b [taxonomic history] L.-M.Eoc. NA. M.Eoc EAs. 
         |     |?- †Trogosus vetulus
         |     |--+-- †Trogosus castoroides Leidy, 1871b [taxonomic history]
         |     |  `-- †Trogosus hyracoides (Marsh, 1873)
         |     `--+--+-- †Trogosus hillsii Gazin, 1953
         |        |  `-- †Trogosus grangeri Gazin, 1953 [taxonomic history]
         |        `--+-- †Trogosus latidens (Marsh, 1874b) [taxonomic history]
         |           `--+-- †Trogosus gazini Miyata, 2007
         |              `-- †Tillodon fodiens (Marsh, 1875b) Gazin, 1953 [†Tillotherium fodiens Marsh, 1875; †Tillodon fodiens (Marsh); Gazin, 1953, Rose, 1972, Gazin, 1976, and Lucas & Schoch, 1998a] M.Eoc. NA.
         `--o †Esthonychinae Zittel & Schlosser, 1911
            |-- †Adapidium huanghoense Young, 1937; U.Eoc. EAs.
            |-- †Anthraconyx hypsomylus Rose, Kumar, Rana, Sahni & Smith, 2013
            |-- †Megalesthonyx hopsoni Rose, 1972; L.Eoc. NA.
            |-- †Plesiesthonyx Lemoine, 1891 [Esthonyx Cope; McKenna & Bell, 1997]
            `==o †Esthonyx Cope, 1874 sensu McKenna & Bell, 1997
               |?- †E. burmeisteri [=? †Esthonyx bisculatus Cope, 1874]
               |?- †E. gunnelli (Gingerich, 1989) [taxonomic history]
               |?- †E. munieri
               |--o †Azygonyx  Gingerich, 1989 [Esthonyx Cope; McKenna & Bell, 1997]
               |  |?- †A. latidens (Simpson, 1937c) [Esthonyx latidens Simpson, 1937c] [taxonomic history]
               |  |?- †A. xenicus (Gingerich & Gunnell, 1979) [Esthonyx xenicus Gingerich & Gunnell, 1979] [taxonomic history]
               |  |-- †A. ancylion (Gingerich & Gunnell, 1979) [Esthonyx ancylion Gingerich & Gunnell, 1979] [taxonomic history]
               |  `-- †A. grangeri (Simpson, 1937c) [Esthonyx grangeri Simpson, 1937c] [taxonomic history]
               `--o †Esthonyx Cope, 1874 [taxonomic history] U.Paleoc.-L.Eoc. NA., L.-M.Eoc. Eu.
                  |-- †E. spatularius Cope, 1880 [taxonomic history]
                  `--+-- †E. bisculatus Cope, 1874 [taxonomic history]
                     `-- †E. acutidens Cope, 1881 [taxonomic history]

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