Although dendrochronological methods have the potential to provide precise calendar dates, they are virtually absent in Mesoamerican archaeological research. This absence is due to several long-standing, but erroneous, assumptions: that tree rings in this region do not reflect annual growth and environmental variability, that an adequate number of samples do not exist, and that tree-ring measurements cannot be useful without modern trees to link prehispanic chronologies. In this article we present data from the sites of La Quemada and Los Pilarillos, located in the Malpaso Valley, Zacatecas, to demonstrate that suitable archaeologically derived samples of dendrochronologically useful species do exist, that the samples from these sites are measurable and cross-datable, and that the tree rings can yield precise calendar dates using a method that “wiggle-matches” radiocarbon dates on tree-ring sequences. The work demonstrates the potential of these methods to address chronological, and, in the future, climatic questions, which have so far eluded archaeological work in the region.

This report examines 10,845 lithic artifacts from the rapidly abandoned city of Aguateca, Guatemala, to elucidate elite artistic and craft production in Classic Maya society. The methods used include high-power microwear analysis. The results suggest that significant numbers of Maya elite, both men and women, engaged in artistic creation and craft production, often working in both attached and independent contexts. The royal family and other elite households produced many artistic and craft items, including wood carvings and hide or leather goods. The scribe inhabiting Structure M8-8 carved stelae for the ruler, and the high-status courtier/scribe living in Structure M8-4 emphasized the production of shell and bone objects and other royal regalia in a courtly setting. Clearly, Aguateca was a center of part-time production of both utilitarian and luxury goods as well as of consumption. Classic Maya elite men and women artists/craft producers possessed multiple social identities and roles, which in turn implies a more flexible and integrated system of Classic Maya elite participating in attached and independent craft production more than is usually proposed.

During the last four decades, mesoamerican archaeologists regularly have employed various chemical assay techniques to determine the geological sources of obsidian artifacts. In recent years, the reliability of these analytical procedures has increased and their costs have declined, encouraging the assay of ever larger samples. Nonetheless, several constraints make it unlikely that compositional data will be used routinely to attribute entire collections to their geological sources. This report describes a test of visual sourcing, a technique that for many sites in the Maya region is only slightly less accurate than compositional assay. We also propose sampling strategies that combine visual and compositional sourcing in ways that allow large collections to be accurately sourced at low costs. Finally, we suggest ways to develop the technique for use throughout Latin America.

Analyses of archaeological data from the La Entrada region in northwestern Honduras demonstrate that central-place theory applies to the regional settlement system during the Late Classic period. The configuration of the regional central-place system appears to have been oriented to the local exchange of subsistence goods and to the minimization of energy expenditure in their movement. The distribution patterns of obsidian artifacts vary significantly among the hypothetical sustaining areas of centers, corroborating the reconstruction of a central-place system. This also suggests that political factors affected the circulation of certain materials and that basic economic spatial units in Classic Maya society were relatively small.

Based on the results of 267 replication experiments with obsidian, chalcedony, and agate tools conducted with a range of working materials, I have classified use-wear patterns using Keeley's high-resolution approach to establish a framework for interpretation of stone-tool use. This paper describes the results of microwear analysis of two assemblages of lithic artifacts from the late Late Classic period (A. D. 763-850) at Copán, western Honduras, and shows how the use-wear data can be interpreted within the archaeological contexts and help to investigate how ancient complex societies functioned as well as how and why they changed. Microwear analysis of chipped-stone artifacts collected in front of Structure 10L-16 and artifacts from Structure 10L-22A show clear differences between the two assemblages. In accordance with the archaeological, epigraphic, and iconographic evidence, the low use-intensity of chipped stone from the first structure could have originated from special use such as ritual, production of marine shell ornaments, etc., during the reign of Yax Pac. Marine shell craft production may have been carried out by members of the royal family or attached specialists serving the ruler. The relatively high use-intensity observable in the second assemblage may reinforce the hypothesis that the building was a Classic Maya popol na (council house) in which feasts or banquets were prepared. If this was the case, use-wear data might support epigraphic and iconographic evidence that suggests the weakening and eventual demise of centralized political authority at Copán in the ninth century.