ARMADILLOS: WHEN THE FAMILY CAR CAME WITH ARMOUR 0 ▲ FOSSIL HUNTRESS 37 minutes ago · History · hide An armadillo already looks like a mammal dressed for a minor siege.Its extinct relatives took the idea considerably further.Glyptodonts were heavily armoured mammals whose rounded bodies sat beneath rigid shells made from bony plates called osteoderms. Some grew to the size of a small car. The largest species could weigh more than two tonnes.They were plant-eaters, which makes the equipment Commenting on Bubbles has been removed. Why? If you want to talk about this post, write to the author, use the comments on their blog if it has them, or reply with a "RE:" post on your own blog. Suggestions? feedback@bubbles.town