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ANALYSIS OF DENTAL AND OSTEOLOGICAL ELEMENTS OF TOXODONTIDAE (MAMMALIA, NOTOUNGULATA) FROM LATE PLEISTOCENE-HOLOCENE DEPOSITS OF THE RIBEIRA OF IGUAPE VALLEY, SOUTHEASTERN BRAZIL

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Autor(es):
Costa, Paulo ricardo de oliveira ; Chahud, Artur ; Okumura, Mercedes
Número total de Autores: 3
Tipo de documento: Artigo Científico
Fonte: Revista Brasileira de Paleontologia; v. 27, n. 4, p. 13-pg., 2024-10-01.
Resumo

- The Ribeira of Iguape Valley, located in the south of S & atilde;o Paulo State, presents an important cave system where several preserved Quaternary faunal remains have been found, especially in the Abismo Ponta de Flecha, Abismo do F & oacute;ssil andAbismo do Juvenal caves. Although the records of toxodontids are common in the region, almost no multidisciplinary research has been done in these materials, including the potential interaction with prehistoric humans. Therefore, the objective of this work was to analyze teeth of toxodontids found in the Ribeira Valley, to understand paleontological aspects of these animals and investigate the presence of cut marks as a proxy for potential interactions with human groups. Taxonomic analysis and measurements showed that all teeth could be assigned to the species Toxodon platensis, deciduous teeth to the cf. T. platensis, and one lower molar that was suggestively associated with Mixotoxodon larensis. The analysis of paleopathologies identified the presence of dental enamel hypoplasia in all specimens found at Abismo Ponta de Flecha Cave, suggesting that this individual suffered from stress events during the period of tooth formation. Cut marks were identified in only two specimens of T. platensis, but the unusual location of these incisions and the identified weathering marks made it difficult to understand the aiming of these marks. (AU)

Processo FAPESP: 18/23282-5 - Continuidade e mudança em grupos pré-históricos do Vale do Ribeira de Iguape (São Paulo e Paraná): aplicações da teoria evolutiva a bioarqueologia e estudos de cultura material
Beneficiário:Maria Mercedes Martinez Okumura
Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
Processo FAPESP: 21/05877-4 - A fauna de vertebrados pleistocênicos-holocênicos do Abismo Ponta Flecha (Vale do Ribeira de Iguape, Iporanga, SP): o potencial papel de grupos humanos em sua formação e as mudanças ao longo do tempo em sua composição
Beneficiário:Paulo Ricardo de Oliveira Costa
Modalidade de apoio: Bolsas no Brasil - Iniciação Científica