Glyptodon

About the size of a VW Bug, the Glyptodon was an armadillolike creature which actually would be more related to modernday turtles. Sporting over 1 inchthick (2.5 cm) scales, the Glyptodon was a herbivore and, unlike turtles, could not retract its head; instead, it had a bonelike cap on its head.