They also have smaller ears than the other species, and their ears also have a distinctive fleshy expansion on the forward edge that other species lack.

[3] As its name suggests, the Chacoan naked-tailed armadillo is found in the Gran Chaco region of western Paraguay and north-central Argentina.

[2] Within this region, it is more likely to be found in semi-arid, rather than humid, habitats,[4] typically inhabiting open thorn forest and scrub.

[3] Little is known of its biology and behaviour, although it is known to be nocturnal, and an active burrower.

They have been reported to make a grunting call, and to give birth to a single young at a time.