Deltatheridium
Deltatheridium (binomen a Gregory et Simpson anno 1926 inventum) est genus mammalium marsupialium exstinctum.

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
Ordo: † Deltatheroida
Familia: † Deltatheridiidae
Genus: †Deltatheridium (Gregory & Simpson, 1926)

Species 
 †Deltatheridium pretrituberculare
 †Deltatheridium nessovi

Notae 
 McKenna, M. C. & Bell, S. K., (eds.) 1997: Classification of mammals – above the species level.
–Columbia University Press, New York, 1997, xii-631

Marsupialia exstincta