Medieval population of the Deraheib site against the background of ancient and modern groups of Southern Europe and Africa based on osteometric data

Abstract

Introduction. The study presents an osteometric analysis of the postcranial skeleton from the Medieval population of Deraheib (Sudan, 9th-11th centuries CE), identified with the gold-mining and trading center of Al-Allaqi. The research aims to integrate morphological characteristics of the series into existing datasets and contextualize Deraheib's population against earlier and contemporaneous groups from North/South Africa and Southern Europe.

Materials and methods. The study examined skeletal remains of 23 adults (14 males, 9 females) from Muslim burials at the Southern Necropolis. A standard osteometric protocol (74 measurements) focused on limb proportions. Comparative analysis included 15 series from North/South Africa and Southern Europe using multivariate statistics (canonical discriminant analysis, decision trees).

Results and discussion. The Deraheib series occupies an intermediate morphological position among Northeast African groups. Lower limb proportions show affinities with Egyptian series and one Lower Nubian group (Sayala), featuring relatively elongated tibiae. Upper limb characteristics align with Upper Nubian (Kerma) and Egyptian (Deir el-Banat) groups, displaying developed distal segments. Females particularly resemble the Sayala series in maximal tibiofemoral indices. Multivariate analysis indicates closest similarity with Deir el-Banat.

Conclusion. The research reveals complex biological diversity in the region, demonstrating both geographical patterning (distinct Nubian, Sudanese, Egyptian clusters) and population-specific traits. Observed morphological variation likely resulted from local ecological adaptation, ethnic cultural practices, and intensive migration at this trade route crossroads.

Funding. This work was done with the support of MSU Program of Development, Project No 23-SCH02-22 (agreement number 004179) NOSH MSU Preservation of world cultural and historical heritage “History, anthropology and ethnology of Northeast Africa in the context of environmental changes over the last 13 thousand years (experience of interdisciplinary research)”.

Acknowledgements. The authors would like to express their gratitude to the director of the Research Institute and the Museum of Anthropology of Lomonosov Moscow State University, Member of the Russian Academy of Sciences Dr. A.P. Buzhilova, as well as to the Paleoethnology Research Center, and personally to the deputy director for science of the Paleoethnology Research Center, Ph.D. D.V. Pezhemsky for their help in organizing the expedition and for valuable recommendations and comments.

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