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The Fossil Human from Rabat-Kébibat (Morocco): Comparative Study of the Cranial and Mandibular Fragments

By Aicha Oujaa, Julie Arnaud, Morgane Bardey-Vaillant and Dominique Grimaud-Hervé

Abstract

As part of the geological and chronological recontextualization of the Rabat-Kébibat quarry performed by a Franco-Moroccan team of geologists, the human remains discovered in the site and already published were reassessed. The human remains assemblage is composed of 23 cranial fragments, a mandible (including on the right I1, P3, P4, the roots of M1, M2, and M3, and of the left I1, I2, C, P3, P4, and M1), and the left half of the maxillary (including I1, I2, P3, P4, M1, and M2). Through a micro-computerized tomography analysis, the internal structure of the parietal fragment (evaluation of the thickness of the compact table and diploe) and the mandible was examined. Geometric morphometrics were applied on the tridimensional model of the mandible to investigate the conformation of the symphyseal outlines. Results were compared to a large reference collection composed of African, Asiatic, and European hominin fossils, from different chronological range. Our results allow us to clarify the phylogenetic position of the human remains from Rabat-Kebibat, in particular their relationship with other North African hominins

Topics: Kebibat, human fossils, internal bone structures, phylogenetic position
Year: 2017
DOI identifier: 10.1007/s10437-017-9278-7
OAI identifier: oai:iris.unife.it:11392/2379296
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