a1 Instituto de Investigaciones Antropológicas, and Facultad de Filosofía y Letras, Universidad Nacional Autónoma de, México
a2 Proyecto Templo Mayor/Subdirección de Estudios Arqueológicos, Instituto Nacional de Antropología e Historia, México
a3 Department of Anthropology, Arizona State University, Tempe, AZ 85287-2402, USA, and Proyecto Templo de Quetzalcóatl, Teotihuacan, México
In this article the significance of Teotihuacan's most sumptuous monument is studied: the Temple of Quetzalcoatl. Based on iconographie studies, together with the results of recent archaeological excavations, it is possible to deduce that the building was dedicated to the myth of the origin of time and calendric succession. The sculptures on its facades represent the Feathered Serpent at the moment of the creation. The Feathered Serpent bears the complex headdress of Cipactli, symbol of time, on his body. The archaeological materials discovered coincide with iconographie data and with this interpretation. Other monuments in Mesoamerica are also apparently consecrated in honor of this same myth and portray similar symbolism.