Latitudinal range: -37.9° to -19.9°

Habitats: tropical/subtropical dry broadleaf forest (1), Mediterranean woodland (1), desert/xeric shrubland (7), tropical/subtropical moist broadleaf forest (1)

Found in 12 samples

Argentina: Acambuco, Mendoza (pronounced slope), Mendoza (undisturbed thicket), Ñacuñán Biosphere Reserve, MaB Reserve of Ñacuñan (arboreal), MaB Reserve of Ñacuñan (ground), Cueva El Abra (Holocene)

Brazil: Rio Negro farm

Chile: Burca, Fray Jorge National Park, Las Chinchillas Natural Reserve (equatorial-facing slopes, spring 1987), Taguatagua 1 (Late Pleistocene)

See also Thylamys elegans, Thylamys macrurus, Thylamys pallidior, Thylamys pusillus, Thylamys sp.