Class Mammalia Linnaeus, 1758 - mammals
   Subclass †Allotheria Marsh, 1880
     Order †Multituberculata Cope, 1884
       Suborder †"Plagiaulacida" Ameghino, 1889 [paraphyletic]
         †Paulchoffatiid line
           Family †Paulchoffatiidae Hahn, 1969
             Subfamily †Paulchoffatiinaeᵀ Hahn, 1969
               †Taxa based on lower dentition
                 Genus †Guimarotodon Hahn, 1969 [monotypic]
                   1 †Guimarotodon leiriensis Hahn, 1969