Anatomy: This well-armored animal had heavy, dome-shaped body armor, and rings of bony armor on its long tail. The tail has mace-like protrusions at its end. Doedicurus was 13 feet (4 m) long and 5 feet (1.5 m) tall. This mammal had four short legs, powerful jaws, with no teeth in the front front of the mouth, but had grinding teeth farther back in the jaws.

When Doedicurus Lived: Doedicurus lived during the Ice Ages, during the Pleistocene (between 2 million and 15,000 years ago).

Classification: Class Mammalia (mammals), Order Edentata (anteaters, sloths, and armadillos), Family Glyptodontidae (armadillo-like animals), Genus Doedicurus.