Class Mammalia Linnaeus, 1758 - mammals
Subclass Boreosphenida Luo, Cifelli & Kielan-Jaworowska, 2001 - tribotherians
see Clade Boreosphenida Luo, Cifelli & Kielan-Jaworowska 2001
Infraclass Metatheria Huxley, 1880
Cohort Marsupialia Jameson, 1818 - marsupials
Superorder "Ameridelphia" Szalay, 1982 [paraphyletic]
see Clade Ameridelphia Szalay 1982
Order "Didelphimorphia" Gill, 1872 [paraphyletic]
?Family †Peradectidae Crochet, 1979
Genus †cf. Peradectesᵀ Matthew & Granger, 1921
1 †cf. Peradectes austrinus (Sigé, 1971)