Early Neanderthal mandibular remains from Baume Moula‐Guercy (Soyons, Ardèche)

Author:

Richards Gary D.1ORCID,Jabbour Rebecca S.2,Guipert Gaspard3,Defleur Alban4

Affiliation:

1. Department of Biomedical Sciences, A. A. Dugoni School of Dentistry University of the Pacific San Francisco California USA

2. Department of Biology Saint Mary's College of California Moraga California USA

3. Institut de Paléontologie Humaine Fondation Albert Ier Prince de Monaco Paris France

4. IPHES Institut Català de Paleoecologia Humana I Evolució Social Tarragona Spain

Abstract

AbstractWe provide an ontogenetically‐based comparative description of mandibular remains from Last Interglacial deposits (MIS 5e) at Baume Moula‐Guercy and examine their affinities to European and Middle Eastern Middle‐to‐Late Pleistocene (≈MIS 14—MIS 1) Homo. Description of the M‐G2‐419 right partial mandibular corpus with M1‐3 (15–16.0 years ±0.5 years) and mandibular fragments M‐F4‐77 and M‐S‐TNN1 is with reference to original fossils, casts, CT scans, literature descriptions, and virtual reconstructions. Our comparative sample is ontogenetically based and divided into a Preneanderthal—Neanderthal group and a Homo sapiens group. These groups are subdivided into (1) Preneanderthals (≈MIS 14‐9), Early Neanderthals (MIS 7‐5e), and Late Neanderthals (MIS 5d‐3), and (2) Middle (MIS 5) and Upper (MIS 3‐Pre‐MIS 1) Paleolithic and recent H. sapiens. Standard techniques were employed for developmental age and sex determinations and measurements. The M‐G2‐419 mandible possesses corpus features that link it most closely with the Sima de los Huesos Preneanderthal and Early Neanderthal groups. These include mental foramen position, number, and height on the corpus, anterior marginal tubercle position, and mylohyoid line orientation. Metrically, the M‐G2‐419 mandibular corpus is small relative to adults in all groups, but the thickness/height relationship is like the adult condition. The thickness of the corpus is more like Neanderthal children than adolescents. Molar crown features suggest affinities with the Preneanderthal—Neanderthal group. The Moula‐Guercy mandibles possess a combination of Neanderthal‐associated features that provides insights into MIS 7‐5e paleodeme variation and the timing of appearance of MIS 5d‐3 Neanderthal facial features.

Publisher

Wiley

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