All signs found so far point to Ahuizotl. The site lies directly below a huge, recently discovered stone monolith carved with a representation of Tlaltecuhtli, the Aztec god of the earth.
Depicted as a woman with huge claws and a stream of blood flowing into her mouth as she squats to give birth, Tlaltecuhtli was believed to devour the dead and then give them new life.
The god was so fearsome that Aztecs normally buried her depictions face down in the earth. However, this one is face-up.
In the claw of her right foot, the god holds a rabbit and ten dots, indicating the date "Ten Rabbit" -- 1502, the year of Ahuizotl's death.
Any artifacts linked to Ahuizotl would bring tremendous pride to Mexico.
The country has sought unsuccessfully to recover Aztec artifacts like the feather-adorned "shield of Ahuizotl" and the "Montezuma headdress" from the Ethnology Museum in Vienna, Austria.
"Imagine it -- this wasn't just any high-ranking man. The Aztecs were the most powerful society of their time before the arrival of the Spaniards," Martos said. "That's why Ahuizotl's tomb down there is so important."



