Understanding what happened after the collapse of and dating the different reoccupations of Teotihuacan can be challenging due to different factors, including the reuse of building materials and looting during Postclassic and modern times, which resulted in altered archaeological contexts or significant inbuilt ages for the samples. A Bayesian approach integrating radiocarbon ages and detailed archaeological information can help to overcome these difficulties. In this contribution we present the process of building a high-resolution chronology for the tunnels located to the east of the Pyramid of the Sun (excavated by Linda R. Manzanilla from 1993 to 1996) by the integration of 20 radiocarbon ages from Cueva del Pirul and Cueva de las Varillas with detailed archaeological information on the context for each dated sample, including ceramic style. With the resulting chronology it is possible to distinguish the moment of the different occupations during the Epiclassic and Postclassic times, helping to refine chronologies based on ceramic styles and to understand the population dynamics in the area.
