Class Mammalia Linnaeus, 1758 - mammals
   †"Symmetrodontans" Simpson, 1925, incertae sedis see Infraclass Symmetrodonta Simpson, 1925
     Superlegion Trechnotheria McKenna, 1975 see Clade Trechnotheria McKenna 1975
       Family †Spalacotheriidae Marsh, 1887
         Genus †Spalacotheriumᵀ Owen, 1854, incertae sedis
           1 †Spalacotherium tricuspidensᵀ Owen, 1854
           2 †Spalacotherium evansae Ensom & Sigogneau-Russell, 2000
           3 †Spalacotherium henkeli Krebs, 1985
           4 †Spalacotherium taylori Clemens & Lees, 1971