After Szalay & Trofimov, 1996, de Muizon, Cifelli & Céspedes, 1997 and Alroy, 2002

<==o †Boreometatheria [incl. Ameridelphia Szalay, in Archer, ed., 1982; Asiadelphia Trofinov & Szalay, 1994] (Asian and North American metatheres; Assian ja pohjois-amerikan pussieläimet) [paraphyletic assemblage of basal Non-Notometatherian metatheres]
   |?- †Camptomus amplus Marsh, 1889
   |?- †Adinodon pattersoni Hershkovitz, 1995 [Adinodontinae Hershkovitz, 1995]
   `--+-- †Iqualadelphis lactea Fox, 1987
      `--+--o †Asiadelphia Trofinov & Szalay, 1994
         |  |?- †Kokopellia juddi Cifelli, 1993; L.Cret. NA. [Kopellia lapsus calami?]
         |  `--+-- †Asiatherium reshetovi Trofinov & Szalay, 1994 [Asiatheriidae Trofinov & Szalay, 1994]
         |     `--o †Marsasia Nesov, 1997 [?Asiatherium]
         |        |-- †M. aenigma Nesov, 1997 
         |        `-- †M. sp. [Averianov & Kielan-Jaworowska]
         `--o ?†Ameridelphia Szalay, in Archer, ed., 1982 sensu stricto? []
            |?- †Dakotadens morrowi Eaton, 1993b
            |?- †Progarzonia Ameghino, 1904
            |?-o †Iugomortiferum Cifelli, 1990b; U.Cret. NA.
            |  |-- †I. sp. [Cifelli, 1990b] [undiscribed]
            |  `-- †I. thoringtoni Cifelli, 1990b
            |?-o †Protalphadon Cifelli, 1990
            |  |-- †P. lulli (Clemens, 1966) Cifelli, 1990 [Alphadon lulli Clemens, 1966]
            |  `-- †P. foxi Johanson, 1996b
            |-- †Varalphadon cerber (Fox, 1971) Johanson, 1996 [Protalphadon cerber (Fox, 1971); Alphadon cerber Fox, 1971]
            |-- †Varalphadon waheapensis (Cifelli, 1990a) Johanson, 1996 [Protalphadon waheapensis Cifelli, 1990a]
            |-- †Varalphadon crebreforme (Cifelli, 1990b) Johanson, 1996 [Protalphadon crebreforme Cifelli, 1990b]
            |--o †Stagodontidae Marsh, 1889 sensu McKenna & Bell, 1997 [taxonomic history] [†Anchimetatheria Szalay, 1993, in partim]
            |  |?- †Boreodon matutinus Lambe, 1902 (nomen dubium, Fox & Naylor, 2006)
            |  |?-o †Pariadens Cifelli & Eaton, 1987 [treated as stagodonts by Cifelli & Eaton, 1987 and Cifelli, 2004]
            |  |  |-- †P. kirklandi Cifelli & Eaton, 1987
            |  |  `-- †P. mckennai Cifelli, 2004
            |  `-- †Stagodontidae Marsh, 1889 sensu stricto [taxonomic history] [†Anchimetatheria Szalay, 1993, in partim]
            |--+--+-- †Bistius bondi Clemens & Lillegraven, 1986
            |  |  `--o †Turgidodon Cifelli, 1990 [Alphadon Simpson, 1927]
            |  |     |-- †T. praesagus (Russell, 1952) Cifelli, 1990 [Alphadon praesagus Russell, 1952]
            |  |     |-- †T. rhaister (Clemens, 1966) Cifelli, 1990 [Alphadon rhaister Clemens, 1966]
            |  |     |-- †T. russelli (Fox, 1979) Cifelli, 1990 [Alphadon russelli Fox, 1979]
            |  |     |-- †T. parapraesagus (Rigby & Wolberg, 1987) Cifelli, 1990 [Alphadon parapraesagus Rigby & Wolberg, 1987]
            |  |     |-- †T. petiminis Storer, 1991
            |  |     |-- †T. lillegraveni Cifelli, 1990
            |  |     `-- †T. madseni Cifelli, 1990
            |  `--+-- †Alphadontidae Marshall, Case & Woodburne, 1990 [Alphadontia Archer, 1984; Didelphidae: Alphadontinae Marshall, Case & Woodburne, 1990 sensu McKenna & Bell, 1997]
            |     `-- †Pediomyidae Simpson, 1927 [†Anchimetatheria Szalay, 1993, in partim]
            `--+-- †Jaskhadelphys minutus Marshall & de Muizon, 1988 [Jaskhadelphysidae Marshall & de Muizon, 1988 or de Muizon, 1991]
               |?-+?- †Thylacodon pusillus Matthew & Granger, 1921 [P. pusillus Matthew & Granger, 1921]
               |  `?- †Simpsonitheria Szalay, in Szalay, Novacek & McKenna, eds., 1993
               `--+?- †Herpetotheriidae Trouessant, 1879 [Didelphidae: Herpetotheriinae Trouessant, 1879 sensu McKenna & Bell, 1997] [paraphyletic?]
                  `-- Notometatheria?

Reference(s):

 

Special thanks to:

Jos H. M. Dols, for gathering additional information and missing species.