Dating of fossil human teeth and shells from Toca do Enoque site at Serra das Confusões National Park, Brazil
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This work reports the dating of a fossil human tooth and shell found at the archaeological site Toca do
Enoque located in Serra das Confusões National Park (Piauí, Brazil). Many prehistoric paintings have been
found at this site. An archaeological excavation unearthed three sepulchers with human skeletons and some
shells. Two Brazilian laboratories, in Ribeirão Preto (USP) and Recife (UFPE), independently performed
Electron Spin Resonance (ESR) measurements to date the tooth and the shell and obtain the equivalent
dose received by each sample. The laboratories determined similar ages for the tooth and the shell (~4.8
kyBP). The results agreed with C-14 dating of the shell and other samples (charcoal) collected in the same
sepulcher. Therefore, this work provides a valid inter-comparison of results by two independent ESRdating laboratories and between two dating methods; i.e., C-14 and ESR, showing the validity of ESR
dating for this range of ages.
Como referenciar
KINOSHITA, ANGELA; SULLASI, HENRY L.; ASFORA, VIVIANE K.; AZEVEDO, RENATA L.; GUZZO, PEDRO; GUIDON, NIEDE; FIGUEIREDO, ANA M.G.; KHOURY, HELEN; PESSIS, ANNE M.; BAFFA, OSWALDO. Dating of fossil human teeth and shells from Toca do Enoque site at Serra das Confusões National Park, Brazil. Anais da Academia Brasileira de Ciências, v. 88, n. 2, p. 847-855, 2016. Disponível em: http://repositorio.ipen.br/handle/123456789/26528. Acesso em: 30 Jun 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.