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
         1 Genus †Spalacotheriumᵀ Owen, 1854, incertae sedis
         2 Genus †Zhangheotherium Hu et al., 1997, incertae sedis [monotypic]
         3 Subfamily †Spalacolestinae Cifelli & Madsen, 1999