[2] Larger than the closely related southern naked-tailed armadillos, adults of the greater species measure 41 to 49 cm (16 to 19 in) in head-body length, with a tail 15 to 20 cm (5.9 to 7.9 in) in length.

There are eight or nine uniformly shaped teeth on each side of each jaw, with no identifiable incisors or canines.

[3] Greater naked-tailed armadillos are found in southern Brazil, eastern Paraguay and Uruguay and extreme north-eastern Argentina.

[1] It inhabits lowland and submontane forests, and also relatively open areas such as the Cerrado and Pantanal.

Burrows are typically about 20 to 25 cm (7.9 to 9.8 in) in width, and positioned so that their entrances face away from the prevailing winds.