Fin d'un mythe géologique moderne: Il n'y a pas de rudistes au Brésil! et ses implications paléobiogéographiques

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dc.contributor.authorGranier, Bruno
dc.contributor.authorDias-Brito, Dimas [UNESP]
dc.contributor.institutionCS 93837
dc.contributor.institutionThe University of Kansas
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T16:58:01Z
dc.date.available2018-12-11T16:58:01Z
dc.date.issued2015-07-14
dc.description.abstractOut of the few records of rudists from the Cretaceous strata of the South Atlantic coastal basins only two refer to Brazilian localities. However, petrographic analyses demonstrate that these shells should be assigned to Ostreids or to Pycnodontids rather than to Rudistids. More specifically, the domain considered herein, north of the Río Grande Rise -Walvis Ridge barrier, was part of the warm-water tropical realm, but it was not part of the Mesogean domain because both Rudistids and Orbitolinas are missing. In addition, the scarcity of corals leads us to ascribe the taphonomic assemblage to the Chloralgal facies. Neither generalized hypersalinity or extreme sea-water tempe-ratures seem to account for these biotic peculiarities. Instead, our alternative hypothesis favors the driving role played by oceanic circulation in the dispersal of the benthic organisms.en
dc.description.affiliationDépt. STU UBO CS 93837
dc.description.affiliationDepartment of Ecology and Evolutionary Biology The University of Kansas, 1200 Sunnyside Avenue
dc.description.affiliationUNESP -Universidade Estadual Paulista Center for Geosciences Applied to Petroleum (UNESPetro) Departamento de Geologia Aplicada, Caixa Postal 178, Av. 24 A, no 1515, Bela Vista
dc.description.affiliationUnespUNESP -Universidade Estadual Paulista Center for Geosciences Applied to Petroleum (UNESPetro) Departamento de Geologia Aplicada, Caixa Postal 178, Av. 24 A, no 1515, Bela Vista
dc.format.extent123-136
dc.identifierhttp://dx.doi.org/10.4267/2042/56880
dc.identifier.citationCarnets de Geologie, v. 15, n. 11, p. 123-136, 2015.
dc.identifier.doi10.4267/2042/56880
dc.identifier.issn1634-0744
dc.identifier.issn1765-2553
dc.identifier.scopus2-s2.0-84938925610
dc.identifier.urihttp://hdl.handle.net/11449/171985
dc.language.isoeng
dc.relation.ispartofCarnets de Geologie
dc.relation.ispartofsjr0,496
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAlbian
dc.subjectCalcareous algae
dc.subjectCenomanian
dc.subjectChloralgal
dc.subjectCorals
dc.subjectCretaceous
dc.subjectMesogea
dc.subjectOrbitolinids
dc.subjectOstreids
dc.subjectPaleobiogeography
dc.subjectPycnodontids
dc.subjectRudists
dc.subjectSouth Atlantic
dc.subjectTethys
dc.titleFin d'un mythe géologique moderne: Il n'y a pas de rudistes au Brésil! et ses implications paléobiogéographiquesfr
dc.title.alternativeEnd of a modern geological myth: There are no rudists in Brazil! Paleobiogeographic implicationsen
dc.typeArtigo

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