Mammaliaformes Rowe 1988, nom. cl. inval. see Clade Mammaliaformes Rowe 1988 [Rowe 2020]
   [crown] Class Mammalia Linnaeus, 1758 - mammals
     Subclass Theriiformes Rowe, 1988 see Division Theriiformes Rowe, 1988
       Infraclass Holotheria Wible, Rougier, Novacek, McKenna & Dashzeveg, 1995 see Clade Holotheria Wible, Rougier, Novacek, McKenna & Dashzeveg 1995
         Superlegion †Kuehneotheria McKenna, 1975 see Order Kuehneotheria McKenna, 1975
           Family †Kuehneotheriidae Kermack, Kermack & Mussett, 1968
             Genus †Kuehneon Kretzoi, 1960, nom. dub.
               1 †Kuehneon duchyense Kretzoi, 1960, nom. dub.