Class Mammalia Linnaeus, 1758 - mammals
   Subclass †Allotheria Marsh, 1880
     Order †Multituberculata Cope, 1884
       Suborder †"Plagiaulacida" Ameghino, 1889 [paraphyletic]
         †Paulchoffatiid line
           1 Family †Paulchoffatiidae Hahn, 1969
           2 Genus †Mojo Hahn, Lepage & Wouters, 1987
           3 Family †Hahnodontidae Sigogneau-Russell, 1991 [monotypic]
           4 Family †Pinheirodontidae Hahn & Hahn, 1999