History and Ethnohistory MA, and PhD in Anthropology. Researcher at the UNAM Institute of Anthropology Research and a member of the National Research System. He is a specialist in the Mayan world view and political-territorial organization. He has taught in Mexico, Costa Rica, Guatemala and Italy. His book publications include Tulum. Organización político territorial de la costa oriental de Quintana Roo (1997), and Itzamkanac y Acalan. Tiempos de crisis. Anticipando el futuro (2001).