Palaeontological analyses across the Ediacaran-Cambrian boundary, Upper Corumba Group, Brazil

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Autor(es): dc.contributorUniversidade de Brasília (UnB)-
Autor(es): dc.contributorGeol Survey Brazil-
Autor(es): dc.contributorUniversidade Federal de Viçosa (UFV)-
Autor(es): dc.contributorPetrobras SA-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorFUB-
Autor(es): dc.contributorUniv Extremadura-
Autor(es): dc.contributorNorthwest Univ-
Autor(es): dc.contributorUniv Free State-
Autor(es): dc.creatorAdorno, R. R.-
Autor(es): dc.creatorWalde, D. H. G.-
Autor(es): dc.creatorDo Carmo, D. A.-
Autor(es): dc.creatorDenezine, M.-
Autor(es): dc.creatorCortijo, I.-
Autor(es): dc.creatorSanchez, E. A. M.-
Autor(es): dc.creatorTobias, T. C.-
Autor(es): dc.creatorFazio, G.-
Autor(es): dc.creatorWarren, L. V. [UNESP]-
Autor(es): dc.creatorErdtmann, B. D.-
Autor(es): dc.creatorCai, Y.-
Autor(es): dc.creatorGiorgioni, M.-
Autor(es): dc.creatorRamos, M. E. A. F.-
Autor(es): dc.creatorBaptista, M. C.-
Autor(es): dc.creatorGuimaraes, E. M.-
Autor(es): dc.creatorFigueiredo, M. F.-
Autor(es): dc.creatorGerms, G. J.-
Data de aceite: dc.date.accessioned2022-02-22T00:09:28Z-
Data de disponibilização: dc.date.available2022-02-22T00:09:28Z-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2019-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3989/egeol.43586.549-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/196445-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/196445-
Descrição: dc.descriptionThis 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.-
Descrição: dc.descriptionUniv Brasilia, Inst Geosci, Campus Darcy Ribeiro, BR-70910900 Brasilia, DF, Brazil-
Descrição: dc.descriptionGeol Survey Brazil, Ctr Technol Dev CEDES, Setor Bancario Norte, BR-70040904 Brasilia, DF, Brazil-
Descrição: dc.descriptionUniv Fed Vales Jequitinhonha & Mucuri, Inst Ciencia & Tecnol, Ctr Estudos Geociencias, BR-39100000 Diamantina, Brazil-
Descrição: dc.descriptionPetrobras SA, CENPES, PDGEO BPA, Ave Horacio Macedo 950, BR-21940900 Rio De Janeiro, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Inst Geociencias & Ciencias Exatas, Dept Geol Aplicada, Ave 24A,1515, BR-13506900 Rio Claro, Brazil-
Descrição: dc.descriptionFUB, Kaiserswerther St 16-18, D-14195 Berlin, Germany-
Descrição: dc.descriptionUniv Extremadura, Fac Ciencias, Area Paleontol, Ave Elvas S-N, E-06071 Badajoz, Spain-
Descrição: dc.descriptionNorthwest Univ, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Shaanxi, Peoples R China-
Descrição: dc.descriptionUniv Free State, Dept Geol, Bloemfontein, South Africa-
Descrição: dc.descriptionUniv Estadual Paulista, Inst Geociencias & Ciencias Exatas, Dept Geol Aplicada, Ave 24A,1515, BR-13506900 Rio Claro, Brazil-
Formato: dc.format6-
Idioma: dc.languageen-
Publicador: dc.publisherConsejo Superior Investigaciones Cientificas-csic-
Relação: dc.relationEstudios Geologicos-madrid-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectEdiacaran-Cambrian-
Palavras-chave: dc.subjectCorumba Group-
Palavras-chave: dc.subjectBiostratigraphy-
Palavras-chave: dc.subjectMicropaleontology-
Título: dc.titlePalaeontological analyses across the Ediacaran-Cambrian boundary, Upper Corumba Group, Brazil-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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