And even better, Nievas had found a shell that was still intact – a rare treasure indeed. In fact, the shell of a Glyptodon can tell a lot about the animal’s history. And, like a fingerprint, each husk has a unique pattern.
Indeed, the shell is really Glyptodon armor, which was used to deter larger predators interested in taking a bite out of the herbivorous animals. Larger glyptodonts tended to forage for many different types of plants, while the smaller species would have had a more restrictive diet. Presumably helping toward such conclusions, fossils of these giant armadillo cousins have been found throughout Brazil, Uruguay and Argentina.