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Dianulites (Trepostomata, Bryozoa) from the Early Ordovician of Severnaya Zemlya, Arctic Russia

Published online by Cambridge University Press:  05 June 2013

ANDREJ ERNST*
Affiliation:
Institut für Geowissenschaften der Christian-Albrechts-Universität zu Kiel, Ludewig-Meyn-Str. 10, D-24118 Kiel, Germany
OLGA K. BOGOLEPOVA
Affiliation:
CASP, University of Cambridge, West Building, 181a Huntingdon Road, Cambridge, CB3 0DH, UK
BERNHARD HUBMANN
Affiliation:
Institut für Erdwissenschaften, Universität Graz, Heinrichstraße 26, A-8010 Graz, Austria
ELENA YU. GOLUBKOVA
Affiliation:
Institute of Precambrian Geology & Geochronology, Russian Academy of Sciences, Makarova 2, St Petersburg, 199034, Russia
ALEXANDER P. GUBANOV
Affiliation:
CASP, University of Cambridge, West Building, 181a Huntingdon Road, Cambridge, CB3 0DH, UK SCANDIZ, SE-74695, Skokloster, Sweden
*
Author for correspondence: ae@gpi.uni-kiel.de

Abstract

Trepostome bryozoan Dianulites borealis Astrova, 1965, the earliest known member of this genus, has been identified from the Early Ordovician of Severnaya Zemlya, Arctic Russia. This species developed hemispherical colonies which indicate that it lived on a relatively soft substrate with moderately low rates of sedimentation and erosion. The new record from Severnaya Zemlya expands the palaeogeographical distribution of Dianulites, known before from the Early Ordovician of Novaya Zemlya, Arctic Russia.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 2013 

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Dianulites (Trepostomata, Bryozoa) from the Early Ordovician of Severnaya Zemlya, Arctic Russia
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