Olmec colossal heads by Matthew Stirling in 1938 spurred the first archaeological investigations of Olmec culture. Seventeen confirmed examples are known from four sites within the Olmec heartland on the Gulf Coast of Mexico. Most colossal heads were sculpted from spherical boulders but two from San Lorenzo Tenochtitlán were re-carved from massive stone thrones. An additional monument, at Takalik Abaj in Guatemala, is a throne that may have been carved from a colossal head. This is the only known example from outside the Olmec heartland. Dating the monuments remains difficult because of the movement of many from their original contexts prior to archaeological
Olmec religion 1. To add to the confusion, Joralemon suggested that many of these gods had multiple aspects – for example, Joralemon had identified a God I-A through a God I-F. Despite the use of the term "god", none of these deities and supernaturals show any sexual characteristics which would indicate gender. Also known as the Earth Monster, the Olmec Dragon has flame eyebrows, a bulbous nose, and bifurcated tongue. When viewed from the front, the Olmec Dragon has trough-shaped eyes; when viewed in profile, the eyes are L-shaped. Fangs are prominent, often rendered as an upside-down U-shaped bracket. With the Bird