Giant Armadillo Osteoderm Fossil Pair – Bony Armor Plates

This is a pair of flex osteoderms (shell pieces) from two different species of giant armadillo animals called a pampathere. Their shells are made up of thousands of these that lock together. These species are Holmesina septentrionalis (larger) and Holmesina floridanus (smaller). Holmesina floridanus is the precursor (ancestor) that evolved into to the larger septentrionalis. These were fantastic Pleistocene animals that went extinct at the end of the ice age along with so many other megafauna.