Mammalia Linnaeus 1758 [Rowe 1988], nom. cl. inval. see Class Mammalia Linnaeus, 1758
   Metatheria Huxley 1880 [O'Leary, Allard, Novacek, Meng & Gatesy 2004] see Infraclass Metatheria Huxley, 1880
     Marsupialiformes Vullo, Gheerbrant, de Muizon & Néraudeau, 2009
       Notometatheria Kirsch, Lapointe & Springer 1997
         Marsupialia Jameson 1818 [O'Leary, Allard, Novacek, Meng & Gatesy 2004] see Cohort Marsupialia Jameson, 1818
           [Order] Didelphimorphia Gill, 1872
             Family †Protodidelphidae Marshall, 1987
               1.1 Genus †Anatoliadelphys Maga & Beck, 2017
               1.2 Genus †Periprotodidelphis Oliveira & Goin, 2011
               2.1 Genus †Guggenheimia Paula Couto, 1952
               2.2.1 Genus †Carolopaulacoutoia Carneiro, Oliveira & Goin, 2018, orth. inval. see Genus Carolocoutoia Goin, Oliveira & Candela, 1998
               2.2.2 Genus †Protodidelphis Paula Couto, 1952