Paleoecological characterization of ostracods in beachrocks from the Northern sector of the Rio Grande do Sul Coastal Plain, Brazil

IF 0.7 4区地球科学 Q4 PALEONTOLOGY

Revista Brasileira De Paleontologia Pub Date : 2022-12-31 DOI:10.4072/rbp.2022.4.04

C. T. Bergue, R. P. Lopes, F. Caron, M. Ritter, F. Rodrigues

{"title":"Paleoecological characterization of ostracods in beachrocks from the Northern sector of the Rio Grande do Sul Coastal Plain, Brazil","authors":"C. T. Bergue, R. P. Lopes, F. Caron, M. Ritter, F. Rodrigues","doi":"10.4072/rbp.2022.4.04","DOIUrl":null,"url":null,"abstract":"A micropaleontological analysis on 15 beachrock samples from the Northern sector of Rio Grande do Sul Coastal Plain (RSCP ), southern Brazil , revealed a relatively diverse and well-preserved ostracod assemblage composed of 16 species , including Cyprideis multidentata Hartmann, Callistocythere nucleoperiscum Whatley et al., Cytheretta punctata Sanguinetti, Caudites ohmerti Coimbra & Ornellas , and Argenticytheretta levipunctata Sanguinetti et al. Eleven ostracod species are left in open nomenclature or tentatively identified . Besides ostracods , some foraminifers , echinoderm spines, and fish remains (teeth) were also recovered ; however , the scarcity of specimens or poor preservation precluded identification at species level. Based on the Ostracoda taxonomic composition it is proposed that the beachrocks characterize environmentally condensed assemblages . This preliminary study reveals the importance and potentiality of micropaleontology for understanding the processes involved in the formation of beachrocks. Keywords: Pelotas Basin, Quaternary, coastal environments, micropaleontology, taphonomy.","PeriodicalId":49616,"journal":{"name":"Revista Brasileira De Paleontologia","volume":" ","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Revista Brasileira De Paleontologia","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.4072/rbp.2022.4.04","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PALEONTOLOGY","Score":null,"Total":0}

引用次数: 1

Abstract

A micropaleontological analysis on 15 beachrock samples from the Northern sector of Rio Grande do Sul Coastal Plain (RSCP ), southern Brazil , revealed a relatively diverse and well-preserved ostracod assemblage composed of 16 species , including Cyprideis multidentata Hartmann, Callistocythere nucleoperiscum Whatley et al., Cytheretta punctata Sanguinetti, Caudites ohmerti Coimbra & Ornellas , and Argenticytheretta levipunctata Sanguinetti et al. Eleven ostracod species are left in open nomenclature or tentatively identified . Besides ostracods , some foraminifers , echinoderm spines, and fish remains (teeth) were also recovered ; however , the scarcity of specimens or poor preservation precluded identification at species level. Based on the Ostracoda taxonomic composition it is proposed that the beachrocks characterize environmentally condensed assemblages . This preliminary study reveals the importance and potentiality of micropaleontology for understanding the processes involved in the formation of beachrocks. Keywords: Pelotas Basin, Quaternary, coastal environments, micropaleontology, taphonomy.

查看原文本刊更多论文

巴西南格兰德海岸平原北段滩岩介形类古生态特征

通过对巴西南部里约热内卢Grande do Sul Coastal Plain (RSCP)北段15个滩岩样品的微古生物分析，发现了一个较为多样化且保存较好的壳形类组合，包括Cyprideis multidentata Hartmann、Callistocythere nucleoperiscum Whatley等、Cytheretta punctata Sanguinetti、Caudites ohmerti Coimbra & Ornellas和阿根廷人(Argenticytheretta levipunctata Sanguinetti等16种。11种介形虫仍处于公开命名或初步鉴定中。除了介形虫外，还发现了一些有孔虫、棘皮动物的刺和鱼的遗骸(牙齿);然而，标本稀缺或保存不良阻碍了在物种水平上的鉴定。根据介形纲的分类组成，认为滩岩具有环境凝聚组合的特征。这一初步研究揭示了微古生物学对了解滩岩形成过程的重要性和潜力。关键词:佩洛塔斯盆地，第四纪，海岸环境，微古生物学，地层学

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

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.