Class Mammalia Linnaeus, 1758 - mammals
   Subclass †Allotheria Marsh, 1880
     Order †Multituberculata Cope, 1884
       Suborder †"Plagiaulacida" Ameghino, 1889 [paraphyletic]
         †Allodontid line
           Family †Allodontidae Marsh, 1889
             Genus †Psalodon Simpson, 1926
               1 †Psalodon potensᵀ (Marsh, 1887)
               2 †Psalodon fortis (Marsh, 1887)
               3 ?†Psalodon marshi Simpson, 1929