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New early Triassic Bryozoa (Trepostomata) from Spitsbergen, with some remarks on the stratigraphy of the investigated horizons

Published online by Cambridge University Press:  01 May 2009

Hans Arne Nakrem  and
Atle Mørk
Hans Arne Nakrem
Affiliation:
Palaeontological Museum, Sars gate 1, N-0562 Oslo 5, Norway
Atle Mørk
Affiliation:
Continental Shelf Institute(IKU), N-7034 Trondheim, Norway
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Abstract

New trepostomatous bryozoan species, Paralioclema winsnesi sp. nov., Paralioclema mariaholmensis sp. nov. and Paralioclema sp. cf. mariaholmensis are described from the Lower Triassic succession of Spitsbergen. The investigated bryozoan faunas are associated with coarse sandstones, calcareous siltstones and shelly limestones. The bryozoan colonies are mostly well preserved in situ, and show limited evidence of transportation. Some zoarial fragments show bioerosion. The conodont species Neogondolella elongata, Ellisonia triassica, Neospathodus dieneri and Neospathodus svalbardensis extracted from the investigated horizons are Dienerian–Smithian in age.

Type
Articles
Information
Geological Magazine , Volume 128 , Issue 2 , March 1991 , pp. 129 - 140
Copyright
Copyright © Cambridge University Press 1991

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