Cryptospores of Iapó formation: The first evidence of early land plants from Late Ordovician in Paraná Basin, Brazil.

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dc.contributor.authorRodrigues, Lívia C.
dc.contributor.authordo Carmo, Dermeval
dc.contributor.authorAssine, Mario [UNESP]
dc.contributor.authorSteemans, Philippe
dc.contributor.institutionUnB
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionLiège University
dc.date.accessioned2023-03-01T21:07:01Z
dc.date.available2023-03-01T21:07:01Z
dc.date.issued2022-10-01
dc.description.abstractAssemblages of cryptospores were reported and detailed for the first time from the Upper Ordovician from Brazil. These assemblages were recovered from diamictites and shales with dropstones of the Iapó Formation, Rio Ivaí Group, Paraná Basin. The analyzed sequence represents the Hirnantian glacial deposits containing well-preserved palynomorphs with low thermal maturity and low total organic carbon. The cryptospore assemblages comprise monads, dyads, permanent tetrads, and polyads, naked or enclosed in an envelope, totalizing 17 species. The associated marine palynomorphs consist of 12 species of acritarchs and prasinophycean algae which are not discussed in detail herein. It is noticied the occurrence of Tortotubus protuberans and abundant black fragments at the lowermost portion of diamictites. The Late Ordovician cosmopolitan assemblages of cryptospores corroborate the early radiation of the land plants in western Gondwana. These results contribute to a better knowledge of Late Ordovician in Brazil and more generally in South America.en
dc.description.affiliationMicropaleontology Laboratory Geoscience Institute University of Brasília UnB
dc.description.affiliationDepartment of Applied Geology Universidade Estadual Paulista Unesp/IGCE
dc.description.affiliationEDDy Lab/Palaeopalynology Department of Geology Liège University
dc.description.affiliationUnespDepartment of Applied Geology Universidade Estadual Paulista Unesp/IGCE
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Apoio à Pesquisa do Distrito Federal
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFundação de Apoio à Pesquisa do Distrito Federal: 0193.000145/2017
dc.description.sponsorshipIdFAPESP: 2017/10956-5
dc.description.sponsorshipIdCNPq: 459776/2014-2
dc.identifierhttp://dx.doi.org/10.1016/j.revpalbo.2022.104742
dc.identifier.citationReview of Palaeobotany and Palynology, v. 305.
dc.identifier.doi10.1016/j.revpalbo.2022.104742
dc.identifier.issn0034-6667
dc.identifier.scopus2-s2.0-85135916214
dc.identifier.urihttp://hdl.handle.net/11449/241508
dc.language.isoeng
dc.relation.ispartofReview of Palaeobotany and Palynology
dc.sourceScopus
dc.subjectCryptospores
dc.subjectGlacial environment
dc.subjectLate Ordovician
dc.subjectPalynomorphs
dc.subjectParaná Basin
dc.titleCryptospores of Iapó formation: The first evidence of early land plants from Late Ordovician in Paraná Basin, Brazil.en
dc.typeArtigo

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