By Damien Gayle PUBLISHED: 13:00 EST, 28 January 2013 | UPDATED: 14:25 EST, 28 January 2013 What could be the site of the largest mass human sacrifice in the bloody history of Mexico's ancient civilisations has been discovered. Archaeologists working at the site near to Mexico City have so far unearthed 150 skulls with just one or two vertaebrae attached - suggesting they were hacked off the victims. Dated to between 600 and 850AD, the skulls were found in an area miles from the nearest large city of the day, and researchers say the discovery could challenge existing notions about the area's ancient culture.
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Find could challenge the conventional account of Meso-American history
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The 1,100 year old skulls found in an area miles historical cities
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Archaeologists stumble across them while surveying on Google Earth
The find is similar, but much earlier than, the discovery of 50 decapitated skulls and 250 jaw bones beneath @placeholder reported in October last year.