Excavations at Plaza del Castillo in Pamplona (northern Spain) revealed a large Islamic necropolis dating to the eighth century A.D., including the skeleton of an adult female showing intentional dental modification (PLA-159). While the practice of dental decoration was virtually absent in Medieval Spain, it is common in Africa and suggests that this individual was born in Africa and brought to Spain later in life. The historically documented occupation of Pamplona by Muslim groups from northern Africa between ca. 715 and 799 A.D. also supports an African origin. As an additional line of evidence, we investigated the geographic origins of two individuals from the cemetery, including PLA-159, via radiogenic strontium and stable oxygen isotope analyses on enamel hydroxyapatite. The human isotopic signatures were measured following established methodologies and compared to the local geochemical composition and modern precipitation values. The data analysis showed a non-local isotopic signature for both individuals, suggesting that they moved to Pamplona following childhood, probably from northern Africa, during the Islamization of the city. Stable carbon isotope analysis revealed a diet heavily based on C3 terrestrial plants. Overall, this preliminary data set exemplifies the use of biogeochemistry as an analytical tool, and provides unique insight about the diffusion of Muslim groups into the Early Medieval Iberian Peninsula.

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This paper examines the role of kinship and postmarital residence in the emergence of organised cemeteries during the transition from the Final Neolithic to the Early Bronze Age at Marathon, Attica. Focusing on the cemetery of Tsepi, we performed intra-cemetery biodistance analysis to test whether biological relatedness structured spatial organisation of tombs, and whether postmarital residence was matrilocal or patrilocal. Dental metric, dental morphological and cranial non-metric data were collected from 293 individuals and subjected to multivariate analysis (principal component analysis, Euclidean distance ordination via multidimensional scaling), binomial probability calculations, Ripley's K analysis and determinant ratio analysis. Results indicated phenotypic similarity among some tomb co-interments; however, outliers suggested that within-tomb burial depended on a variety of factors that could include affinal, fictive or practical kinship. There was strong evidence for phenotypic patterning by tomb row, indicating that cemetery structure at Tsepi was organised according to biological lineages. This was especially evident for females. Male phenotypic variation was higher than that of females, though not significantly so. The results of intra-cemetery biodistance analysis at Tsepi reveal a complex mortuary programme that emphasised biological kinship within an exogamous and likely matrilocal system of mate exchange. When considered in light of ethnographic evidence, the practice of male exogamy may correlate with the coastal location of the community and the maritime activities that structured the economy during the emergence of social complexity in the region. This paper illustrates the potential of biodistance analyses for elucidating aspects of social life in the Aegean.