Palynotaxonomy of the Cretaceous to Neogene section of the Pelotas Basin, Brazil: dinoflagellate cysts of Peridiniales Order
Major part of micropaleontological knowledge of the Pelotas Basin is related to calcareous microfossils, justifying a systematic survey on the palynological data. This paper presents the taxonomic results from the study of 535 stratigraphic samples of two wells drilled in the offshore portion of the...
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Instituto de Geociências /Universidade Federal do Rio Grande do Sul
2017
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ftunivfrgsojs:oai:seer.ufrgs.br:article/83275 2023-07-16T03:54:52+02:00 Palynotaxonomy of the Cretaceous to Neogene section of the Pelotas Basin, Brazil: dinoflagellate cysts of Peridiniales Order Palinotaxonomia da seção cretácea a neogena da Bacia de Pelotas, Brasil: cistos de dinoflagelados da Ordem Peridiniales PREMAOR, Eduardo SOUZA, Paulo A. FERREIRA, Elizabete P. GUERSTEIN, G. Raquel ARAI, Mitsuru 2017-05-28 application/pdf https://seer.ufrgs.br/index.php/PesquisasemGeociencias/article/view/83275 por por Instituto de Geociências /Universidade Federal do Rio Grande do Sul https://seer.ufrgs.br/index.php/PesquisasemGeociencias/article/view/83275/48296 https://seer.ufrgs.br/index.php/PesquisasemGeociencias/article/view/83275 Copyright (c) 2018 Pesquisas em Geociências Pesquisas em Geociências; v. 44 n. 3 (2017): Pesquisas em Geociências; 513-536 1807-9806 1518-2398 palinologia peridinioides taxonomia margem continental brasileira Cretáceo Superior Neogeno palynology peridinians taxonomy Brazilian continental margin Upper Cretaceous Neogene info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2017 ftunivfrgsojs 2023-06-25T21:32:33Z Major part of micropaleontological knowledge of the Pelotas Basin is related to calcareous microfossils, justifying a systematic survey on the palynological data. This paper presents the taxonomic results from the study of 535 stratigraphic samples of two wells drilled in the offshore portion of the Pelotas Basin, enclosing Cretaceous to Neogene deposits. Palynological assemblages analized are diverse and abundant, consisting of spores (mosses and ferns), pollen grains (gymnosperms and angiosperms), dinoflagellate cysts, palynoforaminifers, scolecodonts and fungal spores. As a result of the large volume of generated data, it was necessary, for effect of publication, the compartimentation of the information. In this first part, dinoflagellate cysts Peridiniales Order are presented, with descriptions and photomicrographs. Among the 220 taxa identified of dinoflagellate cyst, 76 belong to the Peridiniales Order, attributable to 31 genera, 72 species, a subspecie, beyond two taxa described without specific determination. A considerable number of 24 species reported for the first time for Brazilian basins is highlighted. Biostratigraphic and paleobiogeographic considerations are synthetically discussed, based on the associations recognized for Late Cretaceous and Neogene in American Atlantic margin and regions close to the Antartic Polar Circle. Grande parte do conhecimento micropaleontológico da Bacia de Pelotas é referente a microfósseis de parede calcária, o que justifica a necessidade de levantamento sistemático de dados palinológicos. Este trabalho apresenta os resultados palinológicos obtidos a partir da análise de 535 amostras de dois poços perfurados na porção offshore da Bacia de Pelotas, incluindo depósitos do Cretáceo ao Neogeno. Os conjuntos palinológicos reconhecidos são ricos e diversificados, constituídos por esporos (briófitas e pteridófitas), grãos de pólen (gimnospermas e angiospermas), cistos de dinoflagelados, palinoforaminíferos, escolecodontes e esporos de fungos. Como consequência do grande ... Article in Journal/Newspaper antartic* Periódicos Científicos da UFRGS (Universidade Federal do Rio Grande do Sul) Pesquisas em Geociências 44 3 513 |
institution |
Open Polar |
collection |
Periódicos Científicos da UFRGS (Universidade Federal do Rio Grande do Sul) |
op_collection_id |
ftunivfrgsojs |
language |
Portuguese |
topic |
palinologia peridinioides taxonomia margem continental brasileira Cretáceo Superior Neogeno palynology peridinians taxonomy Brazilian continental margin Upper Cretaceous Neogene |
spellingShingle |
palinologia peridinioides taxonomia margem continental brasileira Cretáceo Superior Neogeno palynology peridinians taxonomy Brazilian continental margin Upper Cretaceous Neogene PREMAOR, Eduardo SOUZA, Paulo A. FERREIRA, Elizabete P. GUERSTEIN, G. Raquel ARAI, Mitsuru Palynotaxonomy of the Cretaceous to Neogene section of the Pelotas Basin, Brazil: dinoflagellate cysts of Peridiniales Order |
topic_facet |
palinologia peridinioides taxonomia margem continental brasileira Cretáceo Superior Neogeno palynology peridinians taxonomy Brazilian continental margin Upper Cretaceous Neogene |
description |
Major part of micropaleontological knowledge of the Pelotas Basin is related to calcareous microfossils, justifying a systematic survey on the palynological data. This paper presents the taxonomic results from the study of 535 stratigraphic samples of two wells drilled in the offshore portion of the Pelotas Basin, enclosing Cretaceous to Neogene deposits. Palynological assemblages analized are diverse and abundant, consisting of spores (mosses and ferns), pollen grains (gymnosperms and angiosperms), dinoflagellate cysts, palynoforaminifers, scolecodonts and fungal spores. As a result of the large volume of generated data, it was necessary, for effect of publication, the compartimentation of the information. In this first part, dinoflagellate cysts Peridiniales Order are presented, with descriptions and photomicrographs. Among the 220 taxa identified of dinoflagellate cyst, 76 belong to the Peridiniales Order, attributable to 31 genera, 72 species, a subspecie, beyond two taxa described without specific determination. A considerable number of 24 species reported for the first time for Brazilian basins is highlighted. Biostratigraphic and paleobiogeographic considerations are synthetically discussed, based on the associations recognized for Late Cretaceous and Neogene in American Atlantic margin and regions close to the Antartic Polar Circle. Grande parte do conhecimento micropaleontológico da Bacia de Pelotas é referente a microfósseis de parede calcária, o que justifica a necessidade de levantamento sistemático de dados palinológicos. Este trabalho apresenta os resultados palinológicos obtidos a partir da análise de 535 amostras de dois poços perfurados na porção offshore da Bacia de Pelotas, incluindo depósitos do Cretáceo ao Neogeno. Os conjuntos palinológicos reconhecidos são ricos e diversificados, constituídos por esporos (briófitas e pteridófitas), grãos de pólen (gimnospermas e angiospermas), cistos de dinoflagelados, palinoforaminíferos, escolecodontes e esporos de fungos. Como consequência do grande ... |
format |
Article in Journal/Newspaper |
author |
PREMAOR, Eduardo SOUZA, Paulo A. FERREIRA, Elizabete P. GUERSTEIN, G. Raquel ARAI, Mitsuru |
author_facet |
PREMAOR, Eduardo SOUZA, Paulo A. FERREIRA, Elizabete P. GUERSTEIN, G. Raquel ARAI, Mitsuru |
author_sort |
PREMAOR, Eduardo |
title |
Palynotaxonomy of the Cretaceous to Neogene section of the Pelotas Basin, Brazil: dinoflagellate cysts of Peridiniales Order |
title_short |
Palynotaxonomy of the Cretaceous to Neogene section of the Pelotas Basin, Brazil: dinoflagellate cysts of Peridiniales Order |
title_full |
Palynotaxonomy of the Cretaceous to Neogene section of the Pelotas Basin, Brazil: dinoflagellate cysts of Peridiniales Order |
title_fullStr |
Palynotaxonomy of the Cretaceous to Neogene section of the Pelotas Basin, Brazil: dinoflagellate cysts of Peridiniales Order |
title_full_unstemmed |
Palynotaxonomy of the Cretaceous to Neogene section of the Pelotas Basin, Brazil: dinoflagellate cysts of Peridiniales Order |
title_sort |
palynotaxonomy of the cretaceous to neogene section of the pelotas basin, brazil: dinoflagellate cysts of peridiniales order |
publisher |
Instituto de Geociências /Universidade Federal do Rio Grande do Sul |
publishDate |
2017 |
url |
https://seer.ufrgs.br/index.php/PesquisasemGeociencias/article/view/83275 |
genre |
antartic* |
genre_facet |
antartic* |
op_source |
Pesquisas em Geociências; v. 44 n. 3 (2017): Pesquisas em Geociências; 513-536 1807-9806 1518-2398 |
op_relation |
https://seer.ufrgs.br/index.php/PesquisasemGeociencias/article/view/83275/48296 https://seer.ufrgs.br/index.php/PesquisasemGeociencias/article/view/83275 |
op_rights |
Copyright (c) 2018 Pesquisas em Geociências |
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Pesquisas em Geociências |
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513 |
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1771541293674004480 |