Class Mammalia Linnaeus, 1758 - mammals
   †"Symmetrodontans" Simpson, 1925, incertae sedis see Infraclass Symmetrodonta Simpson, 1925
     Family †Tinodontidae Marsh, 1887 [monotypic]
       Genus †Tinodon Marsh, 1879
         1 †Tinodon bellusᵀ Marsh, 1879
         2 †Tinodon micron Ensom & Sigogneau-Russell, 2000