List of mammals of Argentina

This is a list of the mammal species recorded in Argentina. As of February 2011, the list contains 398 mammal species from Argentina, of which 1 is extinct, 6 are critically endangered, 14 are endangered, 19 are vulnerable, and 31 are near-threatened.

The following tags are used to highlight each species' conservation status as assessed by the IUCN:

Didelphimorphia is the order of common opossums of the Western Hemisphere. Opossums probably diverged from the basic South American marsupials in the late Cretaceous or early Paleocene.They are small to medium-sized marsupials, about the size of a large house cat, with a long snout and prehensile tail.

There are six extant species of shrew opossum. They are small shrew-like marsupials confined to the Andes.

The monito del monte is the only extant member of its family and the only surviving member of an ancient order, Microbiotheria. It appears to be more closely related to Australian marsupials than to other Neotropic marsupials; this is a reflection of the South American origin of all Australasian marsupials.

Armadillos are small mammals with a bony armored shell. There are 21 extant species in the Americas, 19 of which are only found in South America, where they originated. Their much larger relatives, the pampatheres and glyptodonts, once lived in North and South America but became extinct following the appearance of humans.

The order Pilosa is extant only in the Americas and includes the anteaters, sloths, and tamanduas. Their ancestral home is South America. Numerous ground sloths, some of which reached the size of elephants, were once present in both North and South America, as well as on the Antilles, but all went extinct following the arrival of humans.

...
Wikipedia