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New Oligocene Cyprididae species (Crustacea, Ostracoda) from the Tremembé Formation, Taubaté Basin, Brazil, and their paleolimnological significance

2018; Volume: 21; Issue: 2 Linguagem: Inglês

10.4072/rbp.2018.2.01

ISSN

2236-1715

Autores

Cristianini Trescastro Bergue, María Inés Feijó Ramos, Maria da Saudade Araújo Santos Maranhão,

Tópico(s)

Isotope Analysis in Ecology

Resumo

Two new Oligocene ostracod species, Eucypris lobatoi sp.nov.and Potamocypris taubatensis sp.nov., are herein proposed.This is the first fossil record of these genera in Brazil, and the species identified occur in two distinct phases of the Tremembé Paleolake.It is assumed that Eucypris lobatoi sp.nov.has lived in the oldest and more stable phase of the lake, Potamocypris taubatensis sp.nov., in the youngest and more unstable phase.These data support a previous ostracod-based paleolimnological interpretation which sustains a shallowing trend in the paleolake during the final deposition of the Tremembé Formation.

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