Archimetatheria
Archimetatheria (binomen a Szalay anno 1993 inventum) sunt subordo mammalium marsupialium exstinctus.

Systema taxinomicum Animalis 
 Imperium: Eukaryota 
 Regnum: Animalia 
 Gradus: Metazoa 
 Subgradus: Eumetazoa 
 Subregnum: Bilateria 
 Infraregnum: Eucoelomata 
 Supraphylum: Deuterostomia 
 Infraphylum: Chordonia 
 Phylum: Chordata 
 Subphylum: Vertebrata 
 Infraphylum: Gnathostomata 
 Supraclassis: Tetrapoda 
 Infraclassis: Amniota 
 Ramus: Mammaliaformes 
 Classis: Mammalia 
 Subclassis: Theriiformes 
 Infraclassis: Holotheria 
 Supralegio: Trechnotheria 
 Legio: Cladotheria 
 Sublegio: Zatheria 
 Infralegio: Tribosphenida 
 Supracohors: Theria
 Cohors: Marsupialia
 Subordo: †Archimetatheria (Szalay, 1993)
 Familia: †Stagodontidae
 Familia: †Pediomyidae

Notae 
 Szalay, F. S. & Trofimov, B. A., 1996: The Mongolian Late Cretaceous Asiatherium, and the early phylogeny and paleobiogeography of Metatheria.

Marsupialia