Evolutionary, paleoecological, and biostratigraphic implications of the Ediacaran-Cambrian interval in West Gondwana

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorVirginia Tech-
Autor(es): dc.contributorUniversity of Saskatchewan-
Autor(es): dc.contributorUberlândia Federal University-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorParaná Federal University-
Autor(es): dc.contributorIndustria Nacional de Cemento-
Autor(es): dc.creatorWarren, Lucas V.-
Autor(es): dc.creatorInglez, Lucas-
Autor(es): dc.creatorXiao, Shuhai-
Autor(es): dc.creatorBuatois, Luis A.-
Autor(es): dc.creatorMángano, M. Gabriela-
Autor(es): dc.creatorOkubo, Juliana-
Autor(es): dc.creatorAlessandretti, Luciano-
Autor(es): dc.creatorSimões, Marcello G.-
Autor(es): dc.creatorRiccomini, Claudio-
Autor(es): dc.creatorAntunes, Gabriel C.-
Autor(es): dc.creatorCerri, Rodrigo I.-
Autor(es): dc.creatorBahniuk, Anelize R.-
Autor(es): dc.creatorCáceres, Alberto A.-
Data de aceite: dc.date.accessioned2025-08-21T19:47:51Z-
Data de disponibilização: dc.date.available2025-08-21T19:47:51Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2022-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1130/B36732.1-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/306087-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/306087-
Descrição: dc.descriptionThe Ediacaran-Cambrian transition interval is described for the west part of the Gondwana Supercontinent. This key interval in Earth’s history is recorded in the upper and lower part of the Tagatiya Guazú and Cerro Curuzu formations, Itapucumi Group, Paraguay, encompassing a sedimentary succession deposited in a tidally influenced mixed carbonate-siliciclastic ramp. The remarkable presence of cosmopolitan Ediacaran shelly fossils and treptichnids, which are recorded in carbonate and siliciclastic deposits, respectively, suggests their differential preservation according to lithology. Their distribution is conditioned by substrate changes that are related to cyclic sedimentation. The associated positive steady trend of the δ13C values in the carbonate facies indicates that the Tagatiya Guazú succession is correlated to the late Ediacaran positive carbon isotope plateau. Sensitive high-resolution ion microprobe U-Pb ages of volcanic zircons from an ash bed ∼30 m above the fossil-bearing interval in the Cerro Curuzu Formation indicate an Early Cambrian (Fortunian) depositional age of 535.7 ± 5.2 Ma. As in other coeval sedimentary successions worldwide, the co-occurrence of typical Ediacaran skeletal taxa and relatively complex trace fossils in the studied strata highlights the global nature of key evolutionary innovations.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionNatural Sciences and Engineering Research Council of Canada-
Descrição: dc.descriptionDepartment of Geology São Paulo State University-
Descrição: dc.descriptionDepartment of Geosciences Virginia Tech-
Descrição: dc.descriptionDepartment of Geological Sciences University of Saskatchewan, Saskatchewan-
Descrição: dc.descriptionInstitute of Geography Uberlândia Federal University, Uberlândia-
Descrição: dc.descriptionDepartment of Zoology São Paulo State University-
Descrição: dc.descriptionInstituto de Energia e Ambiente Universidade de São Paulo-
Descrição: dc.descriptionLaboratory of Mineral and Rock Analysis Institute Department of Geology Paraná Federal University-
Descrição: dc.descriptionIndustria Nacional de Cemento-
Descrição: dc.descriptionDepartment of Geology São Paulo State University-
Descrição: dc.descriptionDepartment of Zoology São Paulo State University-
Descrição: dc.descriptionFAPESP: 2010/19584-4 and 2018/26230-6-
Descrição: dc.descriptionNatural Sciences and Engineering Research Council of Canada: 311727-15/20, and 311726-13, and 422931-20-
Formato: dc.format3102-3111-
Idioma: dc.languageen-
Relação: dc.relationBulletin of the Geological Society of America-
???dc.source???: dc.sourceScopus-
Título: dc.titleEvolutionary, paleoecological, and biostratigraphic implications of the Ediacaran-Cambrian interval in West Gondwana-
Tipo de arquivo: dc.typelivro digital-
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