Ephippia of Cladocera (Crustacea: Branchiopoda) from the Oligocene Tremembe palaeolake, Brazil

Autor(es)

Bergue, C. T. ; Kotov, A. A. ; Maranhao, M. S. A. S.

• Tipo de documento: Artigo Científico
• Fonte: Journal of Natural History; v. 49, n. 37-38, p. 9-pg., 2015-10-10.

Resumo

Ephippia of Cladocera (Crustacea: Branchiopoda) are found in the Oligocene deposits of Tremembe Formation (Taubate Basin, Southeast Brazil). Thirty specimens from a short stratigraphic interval of a 115-m section of a core drilled in Taubate city, Sao Paulo state, have been studied. Based on the morphology, we assumed that they might belong to two diferent species of Daphnia (Ctenodaphnia) which lived either in the Tremembe palaeolake or in some surrounding temporary waters. Our find represents the oldest record of fossil ephippia in South America and the second record of Daphnia (Ctenodaphnia) in the former Gondwana. A tentative palaeolimnological interpretation is proposed based on the ephippia occurrences, allied to ostracod and lithological data. (AU)

• Processo FAPESP: 03/07183-1 - Projeto piloto de recarga artificial de aqüíferos, na bacia hidrográfica do Rio Una, em Taubaté
• Beneficiário: Helio Nobile Diniz
• Modalidade de apoio: Auxílio à Pesquisa - Pesquisa em Políticas Públicas