Late Postclassic Chronology in Western Morelos, Mexico

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Abstract
Chronology building is an integral part of the archaeological research process, and changing research questions often require the refinement of existing chronologies. This view is illustrated with a description of the derivation, refinement, and confirmation of a ceramic sequence for the Postclassic period in Morelos, Mexico. The joint application of stratigraphy and quantitative ceramic seriation produced a five-phase Postclassic chronology. To deal with problems in distinguishing the stylistically similar ceramics of the final three phases, discriminant-function analysis was employed, resulting in the confident phasing of nearly all excavated contexts at the sites of Capilco and Cuexcomate. Calendar years are assigned to the phases by radiocarbon dating, and the implications of the dated sequence are explored briefly.