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An Early Permian palynoflora from Milorgfjella, Dronning Maud Land, Antarctica

Published online by Cambridge University Press:  14 May 2004

Kent Larsson ,
Sofie Lindström  and
Dorothy Guy-Ohlson
Kent Larsson
Affiliation:
Department of Historical Geology and Palaeontology, Sölvegatan 13, S-223 62 Lund, Sweden
Sofie Lindström
Affiliation:
Department of Historical Geology and Palaeontology, Sölvegatan 13, S-223 62 Lund, Sweden
Dorothy Guy-Ohlson
Affiliation:
Section of Palaeobotany, Swedish Museum of Natural History, Box 50007, S-104 05 Stockholm, Sweden
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Abstract

A preliminary palynological study of Beacon Supergroup sedimentary rocks exposed at Milorgfjella, Dronning Maud Land, has yielded a relatively rich and well preserved palynoflora dominated by spores and pollen grains, but also including acritarchs and green algae. The palynoflora is dominated by the pterophyte spores Punctatisporites gretensis, Punctatisporites parvus, Granulatisporites spp., Microbaculispora tentula Horriditriletes spp. and Verrucosisporites andersonii, and the gymnosperm pollen grains Plicatipollenites spp. and Cannanoropollis spp. Also present are the lycopod spore Jayantisporites pseudozonatus, the praecolpate pollen grain Marsupipollenites striatus and the monocolpate pollen grain Cycadopites cymbatus. The palynoflora indicates freshwater conditions or, at least, a major freshwater influence on the depositional environment. Comparison of the palynoflora with others from Gondwana suggests an Early Permian (Asselian–Sakmarian) age.

Keywords

AntarcticaMilorgfjellaEarly Permianpalynoflora
Type
Papers—Earth Sciences And Glaciology
Information
Antarctic Science , Volume 2 , Issue 4 , December 1990 , pp. 331 - 344
Copyright
© Antarctic Science Ltd 1990

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