Journal
REVISTA BRASILEIRA DE PALEONTOLOGIA
Volume 19, Issue 1, Pages 15-24Publisher
SOC BRASILEIRA PALEONTOLOGIA
DOI: 10.4072/rbp.2016.1.02
Keywords
non-marine ostracodes; Alianca Formation; Dom Joao local stage; Jatoba Basin; Northeastern Brazil
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Funding
- Propesq (UFPE
- CNPq
- UFPE
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This study presents the non-marine ostracode fauna from three localities of the Alianca Formation (upper Jurassic?), in the north-central portion of the Jatoba Basin. Twenty-two samples were collected in the municipality of Ibimirim, Pernambuco, Brazil, distributed in three sections. The ostracode assemblage, characteristic of freshwater bodies, is composed by the following species: Theriosynoecum pricei (Pinto & Sanguinetti, 1958), T.uninodosa (Pinto & Sanguinetti, 1958), T.quadrinodosum Krommelbein & Weber, 1971, Reconcavona? jatobaensis Krommelbein & Weber, 1971 and Alicenula? spp. The occurrence of Reconcavona? jatobaensis possibly constitutes the oldest known record of this species. The age of the Dom Joao local stage, characterized by its endemic ostracode fauna is hitherto a topic of debate in northeastern Brazilian basins studies, and is here briefly discussed as well.
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