Palaeontological analyses across the Ediacaran-Cambrian boundary, Upper Corumba Group, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3989/egeol.43586.549 http://hdl.handle.net/11449/196445 |
Resumo: | This work presents the results of a palaeontological analysis focused on twenty-six species sampled in five sections of the Tamengo and Guaicurus formations, Corumba and Ladario regions: Corcal and Laginha quarries, Porto Sobramil, Porto Figueiras and Ecoparque Cacimba. Besides, palaeoecological and palaeoenvironmental inferences are presented based on the occurrence of this fossil assemblage. Cloudina catinata Cortijo et al., 2010, previously documented in Spain and Siberia, presents an unprecedented occurrence in the American continent, in siltstones of the Tamengo Formation at Porto Figueiras section, Municipality of Corumba, Mato Grosso do Sul State, Brazil. The biota of the Tamengo Formation is updated and composed of three biomineralizing metazoans, including poriferan spicules, putative sponge gemmule, and a sessile epibiontic prokaryotic colony. The present work also deals with the taxonomy and stratigraphic distribution of four ichnospecies and three vendotaenid species that integrate the updated benthic fauna for the upper portion of Corumba Group. The species diversity of the Tamengo Formation was complemented by the occurrence of sixteen microfossil species that possibly represent a marine planktic assemblage. A dramatic change was identified in the palaeoenvironmental conditions of the Tamengo to Guaicurus formations, followed by a mass extinction event, possibly linked to the global EdiacaranCambrian mass extinction. In addition, organic-walled microfossils were prepared and analyzed from sections of three countries: nine species from the Nomtsas Formation, Namibia; four species from the Tagatiya Guazu Formation, Paraguay; and six species from the Dengying Formation, China. An international biostratigraphic essay consisting of six biozones is proposed for the uppermost Ediacaran and one biozone for the earliest Cambrian. |
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Palaeontological analyses across the Ediacaran-Cambrian boundary, Upper Corumba Group, BrazilEdiacaran-CambrianCorumba GroupBiostratigraphyMicropaleontologyThis work presents the results of a palaeontological analysis focused on twenty-six species sampled in five sections of the Tamengo and Guaicurus formations, Corumba and Ladario regions: Corcal and Laginha quarries, Porto Sobramil, Porto Figueiras and Ecoparque Cacimba. Besides, palaeoecological and palaeoenvironmental inferences are presented based on the occurrence of this fossil assemblage. Cloudina catinata Cortijo et al., 2010, previously documented in Spain and Siberia, presents an unprecedented occurrence in the American continent, in siltstones of the Tamengo Formation at Porto Figueiras section, Municipality of Corumba, Mato Grosso do Sul State, Brazil. The biota of the Tamengo Formation is updated and composed of three biomineralizing metazoans, including poriferan spicules, putative sponge gemmule, and a sessile epibiontic prokaryotic colony. The present work also deals with the taxonomy and stratigraphic distribution of four ichnospecies and three vendotaenid species that integrate the updated benthic fauna for the upper portion of Corumba Group. The species diversity of the Tamengo Formation was complemented by the occurrence of sixteen microfossil species that possibly represent a marine planktic assemblage. A dramatic change was identified in the palaeoenvironmental conditions of the Tamengo to Guaicurus formations, followed by a mass extinction event, possibly linked to the global EdiacaranCambrian mass extinction. In addition, organic-walled microfossils were prepared and analyzed from sections of three countries: nine species from the Nomtsas Formation, Namibia; four species from the Tagatiya Guazu Formation, Paraguay; and six species from the Dengying Formation, China. An international biostratigraphic essay consisting of six biozones is proposed for the uppermost Ediacaran and one biozone for the earliest Cambrian.Univ Brasilia, Inst Geosci, Campus Darcy Ribeiro, BR-70910900 Brasilia, DF, BrazilGeol Survey Brazil, Ctr Technol Dev CEDES, Setor Bancario Norte, BR-70040904 Brasilia, DF, BrazilUniv Fed Vales Jequitinhonha & Mucuri, Inst Ciencia & Tecnol, Ctr Estudos Geociencias, BR-39100000 Diamantina, BrazilPetrobras SA, CENPES, PDGEO BPA, Ave Horacio Macedo 950, BR-21940900 Rio De Janeiro, BrazilUniv Estadual Paulista, Inst Geociencias & Ciencias Exatas, Dept Geol Aplicada, Ave 24A,1515, BR-13506900 Rio Claro, BrazilFUB, Kaiserswerther St 16-18, D-14195 Berlin, GermanyUniv Extremadura, Fac Ciencias, Area Paleontol, Ave Elvas S-N, E-06071 Badajoz, SpainNorthwest Univ, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Shaanxi, Peoples R ChinaUniv Free State, Dept Geol, Bloemfontein, South AfricaUniv Estadual Paulista, Inst Geociencias & Ciencias Exatas, Dept Geol Aplicada, Ave 24A,1515, BR-13506900 Rio Claro, BrazilConsejo Superior Investigaciones Cientificas-csicUniversidade de Brasília (UnB)Geol Survey BrazilUniversidade Federal de Viçosa (UFV)Petrobras SAUniversidade Estadual Paulista (Unesp)FUBUniv ExtremaduraNorthwest UnivUniv Free StateAdorno, R. R.Walde, D. H. G.Do Carmo, D. A.Denezine, M.Cortijo, I.Sanchez, E. A. M.Tobias, T. C.Fazio, G.Warren, L. V. [UNESP]Erdtmann, B. D.Cai, Y.Giorgioni, M.Ramos, M. E. A. F.Baptista, M. C.Guimaraes, E. M.Figueiredo, M. F.Germs, G. J.2020-12-10T19:45:15Z2020-12-10T19:45:15Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article6http://dx.doi.org/10.3989/egeol.43586.549Estudios Geologicos-madrid. Madrid: Consejo Superior Investigaciones Cientificas-csic, v. 75, n. 2, 6 p., 2019.0367-0449http://hdl.handle.net/11449/19644510.3989/egeol.43586.549WOS:000504634900004Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEstudios Geologicos-madridinfo:eu-repo/semantics/openAccess2021-10-23T04:24:13Zoai:repositorio.unesp.br:11449/196445Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:01:45.670520Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Palaeontological analyses across the Ediacaran-Cambrian boundary, Upper Corumba Group, Brazil |
title |
Palaeontological analyses across the Ediacaran-Cambrian boundary, Upper Corumba Group, Brazil |
spellingShingle |
Palaeontological analyses across the Ediacaran-Cambrian boundary, Upper Corumba Group, Brazil Adorno, R. R. Ediacaran-Cambrian Corumba Group Biostratigraphy Micropaleontology |
title_short |
Palaeontological analyses across the Ediacaran-Cambrian boundary, Upper Corumba Group, Brazil |
title_full |
Palaeontological analyses across the Ediacaran-Cambrian boundary, Upper Corumba Group, Brazil |
title_fullStr |
Palaeontological analyses across the Ediacaran-Cambrian boundary, Upper Corumba Group, Brazil |
title_full_unstemmed |
Palaeontological analyses across the Ediacaran-Cambrian boundary, Upper Corumba Group, Brazil |
title_sort |
Palaeontological analyses across the Ediacaran-Cambrian boundary, Upper Corumba Group, Brazil |
author |
Adorno, R. R. |
author_facet |
Adorno, R. R. Walde, D. H. G. Do Carmo, D. A. Denezine, M. Cortijo, I. Sanchez, E. A. M. Tobias, T. C. Fazio, G. Warren, L. V. [UNESP] Erdtmann, B. D. Cai, Y. Giorgioni, M. Ramos, M. E. A. F. Baptista, M. C. Guimaraes, E. M. Figueiredo, M. F. Germs, G. J. |
author_role |
author |
author2 |
Walde, D. H. G. Do Carmo, D. A. Denezine, M. Cortijo, I. Sanchez, E. A. M. Tobias, T. C. Fazio, G. Warren, L. V. [UNESP] Erdtmann, B. D. Cai, Y. Giorgioni, M. Ramos, M. E. A. F. Baptista, M. C. Guimaraes, E. M. Figueiredo, M. F. Germs, G. J. |
author2_role |
author author author author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de Brasília (UnB) Geol Survey Brazil Universidade Federal de Viçosa (UFV) Petrobras SA Universidade Estadual Paulista (Unesp) FUB Univ Extremadura Northwest Univ Univ Free State |
dc.contributor.author.fl_str_mv |
Adorno, R. R. Walde, D. H. G. Do Carmo, D. A. Denezine, M. Cortijo, I. Sanchez, E. A. M. Tobias, T. C. Fazio, G. Warren, L. V. [UNESP] Erdtmann, B. D. Cai, Y. Giorgioni, M. Ramos, M. E. A. F. Baptista, M. C. Guimaraes, E. M. Figueiredo, M. F. Germs, G. J. |
dc.subject.por.fl_str_mv |
Ediacaran-Cambrian Corumba Group Biostratigraphy Micropaleontology |
topic |
Ediacaran-Cambrian Corumba Group Biostratigraphy Micropaleontology |
description |
This work presents the results of a palaeontological analysis focused on twenty-six species sampled in five sections of the Tamengo and Guaicurus formations, Corumba and Ladario regions: Corcal and Laginha quarries, Porto Sobramil, Porto Figueiras and Ecoparque Cacimba. Besides, palaeoecological and palaeoenvironmental inferences are presented based on the occurrence of this fossil assemblage. Cloudina catinata Cortijo et al., 2010, previously documented in Spain and Siberia, presents an unprecedented occurrence in the American continent, in siltstones of the Tamengo Formation at Porto Figueiras section, Municipality of Corumba, Mato Grosso do Sul State, Brazil. The biota of the Tamengo Formation is updated and composed of three biomineralizing metazoans, including poriferan spicules, putative sponge gemmule, and a sessile epibiontic prokaryotic colony. The present work also deals with the taxonomy and stratigraphic distribution of four ichnospecies and three vendotaenid species that integrate the updated benthic fauna for the upper portion of Corumba Group. The species diversity of the Tamengo Formation was complemented by the occurrence of sixteen microfossil species that possibly represent a marine planktic assemblage. A dramatic change was identified in the palaeoenvironmental conditions of the Tamengo to Guaicurus formations, followed by a mass extinction event, possibly linked to the global EdiacaranCambrian mass extinction. In addition, organic-walled microfossils were prepared and analyzed from sections of three countries: nine species from the Nomtsas Formation, Namibia; four species from the Tagatiya Guazu Formation, Paraguay; and six species from the Dengying Formation, China. An international biostratigraphic essay consisting of six biozones is proposed for the uppermost Ediacaran and one biozone for the earliest Cambrian. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 2020-12-10T19:45:15Z 2020-12-10T19:45:15Z |
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/10.3989/egeol.43586.549 Estudios Geologicos-madrid. Madrid: Consejo Superior Investigaciones Cientificas-csic, v. 75, n. 2, 6 p., 2019. 0367-0449 http://hdl.handle.net/11449/196445 10.3989/egeol.43586.549 WOS:000504634900004 |
url |
http://dx.doi.org/10.3989/egeol.43586.549 http://hdl.handle.net/11449/196445 |
identifier_str_mv |
Estudios Geologicos-madrid. Madrid: Consejo Superior Investigaciones Cientificas-csic, v. 75, n. 2, 6 p., 2019. 0367-0449 10.3989/egeol.43586.549 WOS:000504634900004 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Estudios Geologicos-madrid |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
6 |
dc.publisher.none.fl_str_mv |
Consejo Superior Investigaciones Cientificas-csic |
publisher.none.fl_str_mv |
Consejo Superior Investigaciones Cientificas-csic |
dc.source.none.fl_str_mv |
Web of Science 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 |
|
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1808128741898977280 |