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Dinoflagellate cysts from the Marambio Group (Upper Cretaceous) of Humps Island

Published online by Cambridge University Press:  13 May 2004

Susan E. Wood  and
Rosemary A. Askin
Susan E. Wood
Affiliation:
Centre for Palynological Studies, University of Sheffield, Mappin Street, Sheffield S1 3JD, UK Newcastle Research Group in Fossil Fuels and Environmental Geochemistry, Drummond Building, University of Newcastle Upon Tyne NE1 7RU, UK
Rosemary A. Askin
Affiliation:
Department of Earth Sciences, University of California, Riverside, California 92521, USA
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Abstract

Thirty samples from two sections on south-western Humps Island, James Ross Basin, northern Antarctic Peninsula, contain moderately diverse dinoflagellate cyst assemblages deposited in shallow shelf, open marine conditions. Assemblages contain common Isabelidinium spp., including I. cretaceum and I. pellucidum, Cerodinium diebelii, common Odontochitina spp., including O. operculata, O. porifera and O. spinosa, plus Nelsoniella cf. aceras, Octodinium askiniae and rare Chatangiella tripartita, C. victoriensis, Isabelidinium cf. belfastense and I. korojonense. This association includes species with Santonian and Campanian (to Maastrichtian) distribution in Australia and New Zealand. Some of these species may be recycled. A Campanian age is suggested for the Humps Island sections.

Keywords

AntarcticaCampaniandinoflagellate cystsHumps Islandpalynology
Type
Research Article
Information
Antarctic Science , Volume 4 , Issue 3 , September 1992 , pp. 327 - 336
Copyright
© Antarctic Science Ltd 1992

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