BATHYAL OSTRACODS FROM THE UPPER PLEISTOCENE OF THE RIO GRANDE CONE, PELOTAS BASIN, BRAZIL

IF 0.7 Q4 PALEONTOLOGY

REVUE DE MICROPALEONTOLOGIE Pub Date : 2021-07-01 DOI:10.1016/j.revmic.2021.100483

Renata Juliana Arruda Maia , Enelise Katia Piovesan , Cristianini Trescastro Bergue , Geise de Santana dos Anjos Zerfass , Robbyson Mendes Melo

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引用次数: 4

Abstract

Quaternary deep-sea ostracods supply invaluable data for the understanding of both hydrological and sedimentary processes in the continental slope. A huge portion of western South Atlantic bathyal regions is still poorly explored with respect to deep-sea ostracod research. This article contributes to the study of the assemblage ostracod of the Upper Pleistocene of five piston cores recovered in the Cone of Rio Grande, Pelotas Basin, Brazil. Taxonomic analysis revealed 21 species belonging to 13 genera: Cytherella, Macropyxis, Argilloecia, Paracytherois, Cytheropteron, Rimacytheropteron, Eucytherura, Loxoconchidea, Xestoleberis, Apatihowella, Henryhowella, Poseidonamicus and Krithe. The assemblages are quite similar to those registered in southwestern Brazilian bathyal regions. A taxon left in open nomenclature is probably a new genus and species. Eucytherura fossapunctata nov. sp. is here described.

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巴西佩洛塔斯盆地里奥格兰德锥上更新世的深海介形类

第四纪深海介形类为了解大陆斜坡的水文和沉积过程提供了宝贵的资料。就深海介形类的研究而言，南大西洋西部深海区域的很大一部分仍未得到充分探索。本文对巴西佩洛塔斯盆地里奥格兰德锥的5个柱状岩心的上更新世组合介形类进行了研究。分类结果显示:Cytherella、Macropyxis、Argilloecia、Paracytherois、Cytheropteron、Rimacytheropteron、Eucytherura、Loxoconchidea、Xestoleberis、Apatihowella、Henryhowella、Poseidonamicus和Krithe共13属21种。这些组合与巴西西南部深海地区的组合非常相似。在开放命名法中留下的分类单元可能是一个新属和新种。本文描述了一种叫Eucytherura fossapunctata的植物。

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来源期刊

REVUE DE MICROPALEONTOLOGIE PALEONTOLOGY-

CiteScore

2.50

自引率

0.00%

发文量

期刊介绍： La Revue de micropaléontologie publie 4 fois par an des articles de intérêt international, consacrés à tous les aspects de la micropaléontologie. Les textes, en anglais ou en français, sont des articles originaux, des résultats de recherche, des synthèses et mises au point, des comptes rendus de réunions scientifiques et des analyses de ouvrages. La revue se veut résolument ouverte à tous les aspects de la micropaléontologie en accueillant des travaux traitant de la systématique des microfossiles (et de leurs équivalents actuels), des bactéries aux microrestes de vertébrés, et de toutes leurs applications en sciences biologiques et géologiques.

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