Doedicurus clavicaudatus. Illustration of the largest prehistoric glyptodont Doedicurus. Doedicurus clavicaudatus is the largest known glyptodont, and one of the better-known members of the South American Pleistocene megafauna. D. clavicaudatus inhabited woodlands and grasslands and was herbivorous. With a height of 1.5 metres and an overall length of around 4 metres, it could reach a mass of approximately 1910-2370 kilograms. It had a huge domed carapace that was made of many tightly fitted scutes, somewhat similar to that of its modern-day relative, the armadillo.