Clade Mammaliaformes Rowe 1988 [Rowe 1988]
   [crown] Class Mammalia Linnaeus, 1758 - mammals
     Subclass Theriiformes (Rowe, 1988) M.C. McKenna & S.K. Bell, 1997 see Division Theriiformes
       Infraclass †Allotheria Marsh, 1880 see [unranked] Allotheria
         Order †Multituberculata Cope, 1884
           Suborder †Cimolodonta (McKenna, 1975) Kielan-Jaworowska & Nessov, 1992
             Superfamily †Ptilodontoidea (Cope, 1887) M.C. McKenna & S.K. Bell, 1997
               Family †Ptilodontidae Cope, 1887
                 Subfamily †Neoplagiaulacinae (Ameghino, 1890) M.C. McKenna & S.K. Bell, 1997
                   01 Genus †Mesodma Jepsen, 1940
                   02 Genus †Parectypodus Jepsen, 1930
                   03 Genus †Neoplagiaulax Lemoine, 1882
                   04 Genus †Cernaysia Vianey-Liaud, 1986
                   05 Genus †Krauseia Vianey-Liaud, 1986
                   06 Genus †Xyronomys Rigby, 1980
                   07 Genus †Xanclomys Rigby, 1980
                   08 Genus †Ectypodus Matthew & Granger, 1921
                   09 Genus †Mimetodon Jepsen, 1940
                   10 Genus †Mesodmops Tong & Wang, 1994