Dental metrics of Sahelanthropus tchadensis: A comparative analysis with apes and Plio-Pleistocene hominins

Autor(es)

Neves, Walter ; Valota, Leticia ; Monteiro, Clovis

• Tipo de documento: Artigo Científico
• Fonte: S. Afr. j. sci.; v. 120, n. 7-8, p. 4-pg., 2024-07-01.

Resumo

Since discovery and description of the species, Sahelanthropus tchadensis has been at the centre of a great discussion around its classification as a hominin - the first of our lineage - or an ape. Many studies have been conducted in order to clarify this question, especially studies based on the morphology of the cranium and the post-cranial remains. In this study, we analysed the posterior dentition of S. tchadensis in relation to those of other hominins and chimpanzees, using a multivariate comparative metric analysis. Our results suggest that the posterior dentition of the Chad material lies in the range of well-established early Plio-Pleistocene hominins, supporting its classification as part of the hominin lineage. Significance: center dot The subject investigated in this study is important to the understanding of the first steps of human evolution. center dot Much has been discussed about this Chadian species. Some believe it is the first hominin, others believe it is an ape. center dot This study shows that the posterior dentition of S. tchadensis does not preclude it from being a hominin. (AU)

• Processo FAPESP: 23/06224-0 - A interação entre neandertais e humanos modernos no norte dos Bálcãs: uma abordagem paleoantropológica.
• Beneficiário: Walter Alves Neves
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 23/15632-4 - O estudo da morfologia dentária como ferramenta para a compreensão da evolução humana: uma análise comparativa
• Beneficiário: Leticia Sartori Valota
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica