This snale face is in the base of the Jaguar temple, close Juego pelota.
"It has similarities with the Feathered Serpent, a divinity whose cult is one of the most relevant in Mesoamerica. It is related to wind and water. K?u?uk?ul Kaan is a name in Yucatec Mayan that can be translated as Feathered Serpent"
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