The behaviour of the greater fairy armadillo has been little studied. This narrow range contains a unique and crucial habitat for the pink fairy armadillo. The pink fairy armadillo is classified as a fossorial generalist insectivore. The pink fairy armadillo is long, and typically weighs about . The smallest species, the pink fairy armadillo, is roughly chipmunk-sized at and in total length. The pink fairy armadillo ("Chlamyphrous truncatus"), is found nowhere else in the world.