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 †Kuehneodontinae Hahn, 1971 [monotypic]
               Genus †Kuehneodon Hahn, 1969
                 †Kuehneodon barcasensis Hahn & Hahn, 2001