Doedicurus clavicaudatus was a prehistoric glyptodont, living during the Pleistocene until the end of the last ice age, some 11,000 years ago. This was the largest known glyptodontid, and one of the better known members of the New World Pleistocene megafauna, with a height of 1.5 meters (5 ft) and an overall length of around 3.6 meters (12 ft). It had a huge domed carapace that was made of many tightly fitted scutes, somewhat similar to that of its modern-day relative, the armadillos. Its tail was surrounded by a flexible sheath of bone and had long spikes or knobs on the end, at least in male individuals (McNeill Alexander et al. 1999).