Mammalia Linnaeus, 1758
Abderitidae
Argyrolagidae Amenghino, 1904
Bonapartheriidae Pascual, 1980
Caenolestidae Trouessart, 1898
Caroloameghiniidae Ameghino, 1901
Glasbiidae Clemens, 1966
Groeberiidae Patterson, 1952
Palaeothentidae Sinclair, 1906
Patagoniidae
Polydolopidae Ameghino, 1897
Prepidolopidae
Sillustaniidae
Sternbergiidae
