Class Mammalia Linnaeus, 1758 - mammals
   "Eupantotheria" Kermack & Mussett, 1958, incertae sedis [paraphyletic]
     Superorder †Dryolestoidea Butler, 1939
       Order †Dryolestida Prothero, 1981
         Family †Paurodontidae Marsh, 1887
           Genus †Archaeotrigon Simpson, 1927 [monotypic] see Genus Paurodon Marsh, 1887
             †Archaeotrigon brevimaxillus Simpson, 1927 see Paurodon valens Marsh, 1887