Palynotaxonomy of the cretaceos to neogene section of the pelotas brasin, brasil: Dinoflagellate cysts of ptychodiscales and gonyaulacales orders
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.22456/1807-9806.85639 http://hdl.handle.net/11449/228616 |
Resumo: | Dinoflagellate cysts are commonly used to obtain the relative ages, correlations and paleoenvironmental interpretations of the Cretaceous and Paleogenic sections of the Brazilian continental margin. However, the micropaleontological data of the Pelotas Basin is mainly concerning to calcareous microfossils, which is not true for the sedimentary deposits of the Pelotas Basin, whose micropaleontological informations is mostly referring by calcareous microfossils. In this second contribution, we present the systematic and descriptive detailing of the dinoflagellates cysts of the Ptychodiscales and Gonyaulacales orders, from the analysis of 535 samples collected from two wells (BP-01 and BP-02) drilled by Petrobras S.A. in the offshore portion of the Pelotas Basin. The levels analyzed are rich and diverse, enabling the recognition of 137 species. In greater numbers, cysts belonging to the Order Gonyaulacales include 76 genera, 133 species, besides three sub-species. Two genera and four species were assigned to the Order Ptychodiscales. Among the described taxa, 72 are cited for the first time for the Brazilian basins. The recognized associations indicated ages between the Cretaceous and the Neogene, based on the occurrences of E. dettmanniae, D. acuminatum and O. indigena for the Cretaceous; D. californica, D. carposphaeropsis and E. reticulata for the Paleocene; B. longissimum, M. fimbriatum and M. perforatum for the Eocene; C. galea, C. aubryae and H. obscura for the Miocene. R. actinocoronata and A. andalousiensis recorded at the post-Miocene levels of the basin are indicative of younger ages, possibly positioned between the Pliocene and the Pleistocene. |
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Palynotaxonomy of the cretaceos to neogene section of the pelotas brasin, brasil: Dinoflagellate cysts of ptychodiscales and gonyaulacales ordersPalinotaxonomia da seção cretácea a neogena da bacia de pelotas, brasil: Cistos de dinoflagelados das ordens ptychodiscales e gonyaulacalesGonyaulacaleans cystsGymnodinian cystsNeogenePalynologyTaxonomyUpper cretaceousDinoflagellate cysts are commonly used to obtain the relative ages, correlations and paleoenvironmental interpretations of the Cretaceous and Paleogenic sections of the Brazilian continental margin. However, the micropaleontological data of the Pelotas Basin is mainly concerning to calcareous microfossils, which is not true for the sedimentary deposits of the Pelotas Basin, whose micropaleontological informations is mostly referring by calcareous microfossils. In this second contribution, we present the systematic and descriptive detailing of the dinoflagellates cysts of the Ptychodiscales and Gonyaulacales orders, from the analysis of 535 samples collected from two wells (BP-01 and BP-02) drilled by Petrobras S.A. in the offshore portion of the Pelotas Basin. The levels analyzed are rich and diverse, enabling the recognition of 137 species. In greater numbers, cysts belonging to the Order Gonyaulacales include 76 genera, 133 species, besides three sub-species. Two genera and four species were assigned to the Order Ptychodiscales. Among the described taxa, 72 are cited for the first time for the Brazilian basins. The recognized associations indicated ages between the Cretaceous and the Neogene, based on the occurrences of E. dettmanniae, D. acuminatum and O. indigena for the Cretaceous; D. californica, D. carposphaeropsis and E. reticulata for the Paleocene; B. longissimum, M. fimbriatum and M. perforatum for the Eocene; C. galea, C. aubryae and H. obscura for the Miocene. R. actinocoronata and A. andalousiensis recorded at the post-Miocene levels of the basin are indicative of younger ages, possibly positioned between the Pliocene and the Pleistocene.Laboratório de Palinologia Marleni Marques Toigo Instituto de Geociências Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9.500Centro de Pesquisas e Desenvolvimento Leopoldo A. M. Mello, Petrobras. Av. Horácio Macedo, 950Instituto Geológico del Sur Departamento de Geología Universidad Nacional del Sur, Av. Alem, 1253Centro de Geociências Aplicadas ao Petróleo Instituto de Geociências e Ciências Exatas Universidade Estadual Paulista Júlio de Mesquita Filho, Av. 24 A, 1515Centro de Geociências Aplicadas ao Petróleo Instituto de Geociências e Ciências Exatas Universidade Estadual Paulista Júlio de Mesquita Filho, Av. 24 A, 1515Universidade Federal do Rio Grande do SulCentro de Pesquisas e Desenvolvimento Leopoldo A. M. MelloUniversidad Nacional del SurUniversidade Estadual Paulista (UNESP)Premaor, EduardoSouza, Paulo A.Ferreira, Elizabete P.Guerstein, G. RaquelArai, Mitsuru [UNESP]2022-04-29T08:27:47Z2022-04-29T08:27:47Z2018-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.22456/1807-9806.85639Pesquisas em Geociencias, v. 45.1807-98061518-2398http://hdl.handle.net/11449/22861610.22456/1807-9806.856392-s2.0-85056605886Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporPesquisas em Geocienciasinfo:eu-repo/semantics/openAccess2022-04-29T08:27:47Zoai:repositorio.unesp.br:11449/228616Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-29T08:27:47Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Palynotaxonomy of the cretaceos to neogene section of the pelotas brasin, brasil: Dinoflagellate cysts of ptychodiscales and gonyaulacales orders Palinotaxonomia da seção cretácea a neogena da bacia de pelotas, brasil: Cistos de dinoflagelados das ordens ptychodiscales e gonyaulacales |
title |
Palynotaxonomy of the cretaceos to neogene section of the pelotas brasin, brasil: Dinoflagellate cysts of ptychodiscales and gonyaulacales orders |
spellingShingle |
Palynotaxonomy of the cretaceos to neogene section of the pelotas brasin, brasil: Dinoflagellate cysts of ptychodiscales and gonyaulacales orders Premaor, Eduardo Gonyaulacaleans cysts Gymnodinian cysts Neogene Palynology Taxonomy Upper cretaceous |
title_short |
Palynotaxonomy of the cretaceos to neogene section of the pelotas brasin, brasil: Dinoflagellate cysts of ptychodiscales and gonyaulacales orders |
title_full |
Palynotaxonomy of the cretaceos to neogene section of the pelotas brasin, brasil: Dinoflagellate cysts of ptychodiscales and gonyaulacales orders |
title_fullStr |
Palynotaxonomy of the cretaceos to neogene section of the pelotas brasin, brasil: Dinoflagellate cysts of ptychodiscales and gonyaulacales orders |
title_full_unstemmed |
Palynotaxonomy of the cretaceos to neogene section of the pelotas brasin, brasil: Dinoflagellate cysts of ptychodiscales and gonyaulacales orders |
title_sort |
Palynotaxonomy of the cretaceos to neogene section of the pelotas brasin, brasil: Dinoflagellate cysts of ptychodiscales and gonyaulacales orders |
author |
Premaor, Eduardo |
author_facet |
Premaor, Eduardo Souza, Paulo A. Ferreira, Elizabete P. Guerstein, G. Raquel Arai, Mitsuru [UNESP] |
author_role |
author |
author2 |
Souza, Paulo A. Ferreira, Elizabete P. Guerstein, G. Raquel Arai, Mitsuru [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal do Rio Grande do Sul Centro de Pesquisas e Desenvolvimento Leopoldo A. M. Mello Universidad Nacional del Sur Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Premaor, Eduardo Souza, Paulo A. Ferreira, Elizabete P. Guerstein, G. Raquel Arai, Mitsuru [UNESP] |
dc.subject.por.fl_str_mv |
Gonyaulacaleans cysts Gymnodinian cysts Neogene Palynology Taxonomy Upper cretaceous |
topic |
Gonyaulacaleans cysts Gymnodinian cysts Neogene Palynology Taxonomy Upper cretaceous |
description |
Dinoflagellate cysts are commonly used to obtain the relative ages, correlations and paleoenvironmental interpretations of the Cretaceous and Paleogenic sections of the Brazilian continental margin. However, the micropaleontological data of the Pelotas Basin is mainly concerning to calcareous microfossils, which is not true for the sedimentary deposits of the Pelotas Basin, whose micropaleontological informations is mostly referring by calcareous microfossils. In this second contribution, we present the systematic and descriptive detailing of the dinoflagellates cysts of the Ptychodiscales and Gonyaulacales orders, from the analysis of 535 samples collected from two wells (BP-01 and BP-02) drilled by Petrobras S.A. in the offshore portion of the Pelotas Basin. The levels analyzed are rich and diverse, enabling the recognition of 137 species. In greater numbers, cysts belonging to the Order Gonyaulacales include 76 genera, 133 species, besides three sub-species. Two genera and four species were assigned to the Order Ptychodiscales. Among the described taxa, 72 are cited for the first time for the Brazilian basins. The recognized associations indicated ages between the Cretaceous and the Neogene, based on the occurrences of E. dettmanniae, D. acuminatum and O. indigena for the Cretaceous; D. californica, D. carposphaeropsis and E. reticulata for the Paleocene; B. longissimum, M. fimbriatum and M. perforatum for the Eocene; C. galea, C. aubryae and H. obscura for the Miocene. R. actinocoronata and A. andalousiensis recorded at the post-Miocene levels of the basin are indicative of younger ages, possibly positioned between the Pliocene and the Pleistocene. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-01 2022-04-29T08:27:47Z 2022-04-29T08:27:47Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.22456/1807-9806.85639 Pesquisas em Geociencias, v. 45. 1807-9806 1518-2398 http://hdl.handle.net/11449/228616 10.22456/1807-9806.85639 2-s2.0-85056605886 |
url |
http://dx.doi.org/10.22456/1807-9806.85639 http://hdl.handle.net/11449/228616 |
identifier_str_mv |
Pesquisas em Geociencias, v. 45. 1807-9806 1518-2398 10.22456/1807-9806.85639 2-s2.0-85056605886 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Pesquisas em Geociencias |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803047091637846016 |