Late Cretaceous ostracods from the central area of the Potiguar Basin, Northeastern Brazil

IF 0.7 4区地球科学 Q4 PALEONTOLOGY

Revista Brasileira De Paleontologia Pub Date : 2020-07-14 DOI:10.4072/rbp.2020.2.01

E. Piovesan, G. Fauth, C. T. Bergue

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引用次数: 2

Abstract

The Jandaira Formation samples collected in the central region of the Potiguar Basin show a diverse Late Cretaceous ostracod fauna. The genera Cytherella, Bairdoppilata, Triebelina, Paracypris, Fossocytheridea, Ovocytheridea, Perissocytheridea, Protocosta, Soudanella, and Leguminocythereis indicate a marginal marine environment during the Santonian–Campanian. The analyzed material demonstrates that ostracods are significant indicators of changes in the depositional environment and paleoecological markers in marginal marine environments. Key words: taxonomy, Upper Cretaceous, paleoecology, neritic assemblages. As amostras provenientes da Formacao Jandaira, coletadas na regiao central da Bacia Potiguar, evidenciam uma diversificada fauna de ostracodes do Neocretaceo. Os generos Cytherella, Bairdoppilata, Triebelina, Paracypris, Fossocytheridea, Ovocytheridea, Perissocytheridea, Protocosta, Soudanella e Leguminocythereis indicam um ambiente marinho marginal no intervalo Santoniano–Campaniano. O material analisado demonstra que os ostracodes sao indicadores significativos de modificacoes no ambiente deposicional e marcadores paleoecologicos em ambientes marinhos marginais. Palavras-chave: taxonomia, Cretaceo Superior, paleoecologia, assembleias neriticas.

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巴西东北部Potiguar盆地中心地区晚白垩世介形虫

在Potiguar盆地中部地区采集的Jandaira组样本显示了晚白垩世介形虫动物群的多样性。Cytherella属、Bairdoppilata属、Triebelina属、Paracypis属、Fossocytheridea属、Ovcytheridea属、Perissoytheridea、Protocosta属、Soudanella属和Leguminocythereis属表明了Santonian-Campanian时期的边缘海洋环境。分析材料表明，介形虫是边缘海洋环境沉积环境变化的重要标志和古生态标志。关键词：分类学，上白垩纪，古生态学，浅海组合。作为Formacao Jandaira的祖先，Bacia Potiguar中心地区的coletadas，证明了Neocretaceo介形虫动物群的多样性。Cytherella属、Bairdoppilata属、Triebelina属、Paracypis属、Fossocytheridea属、Ovcytheridea属、Perissocytridea属、Protocosta属、Soudanella属和Leguminocythereis属在Santoniano–Campaniano之间无边际环境。O材料分析表明，介形虫对海洋环境中的古生态环境和海洋环境具有重要的改造意义。Palavras chave：分类单元，高级珊瑚，古生态学，浅海组合。

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来源期刊

Revista Brasileira De Paleontologia PALEONTOLOGY-

CiteScore

1.60

自引率

14.30%

发文量

审稿时长

>12 weeks

期刊介绍： It publishes original contributions on all aspects of Paleontology. Papers are written in English, Spanish, or Portuguese and are reviewed by international experts.