Invertebrates from the Low Head Member (Polonez Cove Formation, Oligocene) at Vaureal Peak, King George Island, West Antarctica

Página do item simplificado
dc.contributor.authorQuaglio, Fernanda
dc.contributor.authorAnelli, Luiz E.
dc.contributor.authorSantos, Paulo R. dos
dc.contributor.authorPerinott, José Alexandre de Jesus [UNESP]
dc.contributor.authorRocha-Campos, Antonio C.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:34:23Z
dc.date.available2014-05-20T15:34:23Z
dc.date.issued2008-04-01
dc.description.abstractEight taxa of marine invertebrates, including two new bivalve species, are described from the Low Head Member of the Polonez Cove Formation (latest early Oligocene) cropping out in the Vaureal Peak area, King George Island, West Antarctica. The fossil assemblage includes representatives of Brachiopoda (genera Neothyris sp. and Liothyrella sp.), Bivalvia (Adamussium auristriatum sp. nov., ?Adamussium cf. A. alanbeui Jonkers, and Limatula (Antarctolima) ferraziana sp. nov.), Bryozoa, Polychaeta (serpulid tubes) and Echinodermata. Specimens occur in debris flows deposits of the Low Head Member, as part of a fan delta setting in a high energy, shallow marine environment. Liothyrella sp., Adamussium auristriatum sp. nov. and Limatula ferraziana sp. nov. are among the oldest records for these genera in King George Island. In spite of their restrict number and diversification, bivalves and brachiopods from this study display an overall dispersal pattern that roughly fits in the clockwise circulation of marine currents around Antarctica accomplished in two steps. The first followed the opening of the Tasmanian Gateway at the Eocene/Oligocene boundary, along the eastern margin of Antarctica, and the second took place in post-Palaeogene time, following the Drake Passage opening between Antarctic Peninsula and South America, along the western margin of Antarctica.en
dc.description.affiliationUniv São Paulo, Inst Geociencias, BR-05508080 São Paulo, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Geociencias & Ciencias Exatas, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Geociencias & Ciencias Exatas, BR-13506900 Rio Claro, SP, Brazil
dc.format.extent149-168
dc.identifierhttp://dx.doi.org/10.1017/S0954102007000867
dc.identifier.citationAntarctic Science. New York: Cambridge Univ Press, v. 20, n. 2, p. 149-168, 2008.
dc.identifier.doi10.1017/S0954102007000867
dc.identifier.fileWOS000254926000006.pdf
dc.identifier.issn0954-1020
dc.identifier.urihttp://hdl.handle.net/11449/42536
dc.identifier.wosWOS:000254926000006
dc.language.isoeng
dc.publisherCambridge University Press
dc.relation.ispartofAntarctic Science
dc.relation.ispartofjcr1.394
dc.relation.ispartofsjr0,643
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectbivalvesen
dc.subjectbrachiopodsen
dc.subjectBryozoaen
dc.subjectEchinoideaen
dc.subjectPalaeogeneen
dc.subjectPectinidaeen
dc.subjectPolychaetaen
dc.subjecttaxonomyen
dc.titleInvertebrates from the Low Head Member (Polonez Cove Formation, Oligocene) at Vaureal Peak, King George Island, West Antarcticaen
dc.typeArtigo
dcterms.licensehttp://journals.cambridge.org/action/displaySpecialPage?pageId=4676#
dcterms.rightsHolderCambridge Univ Press
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Geociências e Ciências Exatas, Rio Claropt

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
WOS000254926000006.pdf
Tamanho:
1.17 MB
Formato:
Adobe Portable Document Format
Baixar
Licença do Pacote
Agora exibindo 1 - 2 de 2
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:

Coleções

Artigos - Geologia Aplicada - IGCE