Class Mammalia Linnaeus, 1758 - mammals
   †"Symmetrodontans" Simpson, 1925, incertae sedis see Infraclass Symmetrodonta Simpson, 1925
     Family †Bondesiidae Bonaparte, 1990 [monotypic]
       Genus †Bondesiusᵀ Bonaparte, 1990 [monotypic]
         1 †Bondesius ferox Bonaparte, 1990