Elsevier BV Acta Medica Okayama 2352-409X 53 2024 Multi-isotopic analysis of domestic burials from sin Cabezas, Escuintla, Guatemala 104348 EN Shintaro Suzuki Research Institute for the Dynamics of Civilizations, Okayama University Tomás Barrientos Centro de Investigaciones Arqueológicas y Antropológicas, Universidad del Valle de Guatemala Héctor Mejía Transportadora de Energía de Centroamérica, Universidad de San Carlos de Guatemala T. Douglas Price University of Wisconsin We present the results from the stable isotope measurements of strontium (87Sr/86Sr) and oxygen (δ 18O) in tooth enamel from 36 individuals from the site of Sin Cabezas, Escuintla, Guatemala. This is the first contribution of isotopic proveniencing from the Pacific Coast of Guatemala and offers new solid baseline reference data from a large archaeological sample. Although some outlier cases are identified, the high homogeneity is the most evident feature in the sample. Based on this homogeneity, we discuss a critical issue of baseline data between Teotihuacan and the Pacific Coast, where the material culture has indicated intimate cultural interactions. A critical overlap for both strontium and oxygen reference between the Mexican metropolis and the coastal region is pointed out. This is why detecting human movement between both regions is still elusive. A case study of a possible Mexican individual is introduced. We also assess the outlier cases in terms of proveniencing and add several osteobiographic notes for the most relevant cases whose origin could be seen among the Northern - Eastern part of the Guatemalan Highlands, the Soconusco border region, or Central Honduras. No potential conflict of interest relevant to this article was reported.

Elsevier Acta Medica Okayama 0278-4165 60 2020 Isotopic proveniencing at Classic Copan and in the southern periphery of the Maya Area: A new perspective on multi-ethnic society 101228 EN Shintaro Suzuki Graduate School of Humanities and Social Sciences, Okayama University Seiichi Nakamura Center for Cultural Resource Studies, Institute of Human and Social Sciences, Kanazawa University T. Douglas Price Laboratory for Archaeological Chemistry, University of Wisconsin Strontium, oxygen, and carbon isotopes were measured in human tooth enamel from 66 burials in 9L-22 and 9L-23 residential groups at the Classic Maya site of Copan in western Honduras. These results are discussed in relation to earlier studies at Copan and baseline measurements from the surrounding region and the Maya area in general. Nearly 50% of the individuals are identified as non-local based on combinations of strontium, oxygen, and carbon isotope ratios. They came from a variety of places in the Maya area. This migratory pattern at the 9L-22 & 9L-23 residential complex from the Early to Late Classic (ca. 400–800 CE) is compared with 10J-45 sector from the mainly Early Classic occupation (ca. 400–650 CE) and an interesting change is noted. The social privileges observed among the Early Classic immigrants from the north Maya Lowlands were apparently revoked in the Late Classic. New immigrants, probably from the “non-Maya” regions of Western/Central Honduras, appear to have gained those social privileges. High-status Honduran individuals in the urban core suggests a strategy by the Copan dynasty in the Late Classic that incorporated the emerging “non-Maya” elites from Western/Central Honduras. No potential conflict of interest relevant to this article was reported.