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The Olmec colossal heads are at least seventeen monumental stone representations of human heads sculpted from large basalt boulders. The heads date from at least before 900 BC and are a distinctive feature of the Olmec civilization of ancient Mesoamerica.lthough most of the facial detail is lost, the crinkling of the bridge of the nose is still evident, a feature that is common to the frowning expressions of the other Olmec colossal heads. La Venta Monument 4 measures 2.26 metres (7.4 ft) high by 1.98 metres (6.5 ft) wide and 1.86 metres (6.1 ft) deep.
David L. ThornMarch 28, 2003A.1. The Olmec civilization was the most prevalent group in Mesoamerica during the time period of 1200 BC to 400 BC. The chronology for the Olmec civilization for many researchers is still controversial, and this is largely due to problems relating to the dating of artifacts.hough the Olmec were a major influence in the area, the archaeological evidence indicates that the Maya lowlands evolved on their own path, with only a small degree of influence from the Olmec. The path of evolution for the Maya is very similar to the evolutionary path followed by the Olmec civilization.