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Microplankton from the Cape Lamb Member, López de Bertodano Formation (Upper Cretaceous), Cape Lamb, Vega Island

Published online by Cambridge University Press:  13 May 2004

Sandy W. Smith
Sandy W. Smith
Affiliation:
Centre for Palynological Studies, University of Sheffield, Mappin Street, Sheffield S1 3JD, UK
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Abstract

Samples from the lower Cape Lamb Member, López de Bertodano Formation, Cape Lamb, Vega Island, Antarctic Peninsula have yielded rich and diverse marine palynofloral assemblages. The overall character of the palynofloral assemblages indicate a latest Campanian–earliest Maastrichtian age. Four new dinoflagellate cyst species Canninginopsis ordospinosa sp. nov., Microdinium ? gymnosuturum sp. nov., Phelodinium exilicornutum sp. nov. and Operculodinium radiculatum sp. nov. are described. Certain key dinoflagellate cyst taxa such as Operculodinium radiculatum sp. nov., Manumiella n. sp. 3 and Isabelidinium cretaceum allow a correlation of the lower Cape Lamb Member with the upper palynomorph zone 1/lower zone 2 on nearby Seymour Island.

Keywords

Antarctic PeninsulaCampaniandinoflagellate cystsLópez de Bertodano FormationMaastrichtian
Type
Research Article
Information
Antarctic Science , Volume 4 , Issue 3 , September 1992 , pp. 337 - 353
Copyright
© Antarctic Science Ltd 1992

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