 Darwin's find from Punta Alta, a large surface about doubled over with toe bones still inside the folded armour, was identified as a slightly smaller "Glyptodont" named "Hoplophorus" by Lund in the same year.The huge skull from near Mercedes was named "Toxodon" by Owen, and he showed that the "enormous gnawing tooth" from the cliffs of the Carcarañá River was a molar from this species.The finds near Mercedes also included a large fragment of "Glyptodont" armour and a head which Owen initially identified as a "Glossotherium", but later decided was a "Mylodon".