This is a cuauhxicalli - a stone altar of the Mexica culture (of Tenochtitlan), used in the sacrifice of human captives. Death is by decapitation followed by the ripping of the heart out of its cavity. It is made of stone in the form of a jaguar, and on the back, there could be a receptacle for placing the heart as an offering to one or more gods. The Chac Mool may also have been used in this manner, and for the same purpose.
This replica reposes in the archaeological garden of the Chankanaab Lagoon, Cozumel. Its relevance is amplified with tomorrow's upload.