I'd say that skull had some very definite Indonesian if not even Melanesian features in its makeup.
Mass Human Sacrifice? Pile of Ancient Skulls Found
Many victimsCredit: Christopher MorehartSo far, the team has excavated over 150 skulls. (The researchers chose not display the skulls because the sacrificed people may have historic ties to people of today's indigenous cultures.)
Water godCredit: Christopher MorehartAn artifact depicting Tlaloc, an ancient water god from the Pre-Columbian period in Mexico, was found at the human sacrifice site at Lake Xaltocan.
Chaotic timeCredit: Christopher MorehartThe sacrifice likely occurred during a time of great upheaval, when the Teotihuacan culture was declining