The Upper Paleolithic Human Remains of Nazlet Khater 2 (Egypt) and Past Modern Human Diversity

Abstract

The Nazlet Khater 2 skeleton was discovered in 1980 during the excavations of the Belgian Middle Egypt Prehistoric Project in the Nile Valley (Egypt). Its association with the early Upper Paleolithic chert mining site of Nazlet Khater 4 (NK 4) (whose exploitation period ranged from 35 to 40 ka) makes it the oldest almost complete Marine Isotope Stage (MIS) 3 modern human skeleton in northern Africa. The Nazlet Khater 2 (NK 2) remains belong to a young adult male. It is well preserved with the exception of the distal part of the legs and the foot. Comparative analyses of the specimen underline the complex morphology of modern humans from this time period. NK 2 exhibits several retained archaic features, notably on the face and the mandible. The inner ear structures display morphological characteristics that stand on the edge of extant human variation. The postcranial remains have strong muscular insertions and are adapted to high biomechanical strength. Furthermore, NK 2 has vertebral and membral lesions. These postcranial characteristics might be related to intensive mining activities. The study of this specimen provides an opportunity to increase our understanding of past modern human diversity during this time period (MIS 3) for which very rare human remains are known.KeywordsEgypt MiningModern humanNazlet Khater Specialized activitiesUpper Paleolithic