Glyptodons were heavily armored mammals originating in the Pliocene Epoch three million years ago. With their interlocked osteoderms forming a massive shell, plus a spiked tail for use in combat, Glyptodons flourished across the Americas up until just 10,000 years ago when they were hunted by humans migrating into the continents.

This specimen is a Glyptodon scute measuring 2.58". Their hexagonal patterning allowed these osteoderms to interlock together, forming a rigid shell. These shells protected Glyptodons from predators and members of their own species, who would face off in conspecific duels.