Two trepostome bryozoans from the Assistance Formation (Permian, Roadian) near Lake Hazen, Ellesmere Island, Canada

Rhombotrypella superangustata and Dyscritellina fuglensis (Bryozoa, Trepostomata) were found for the first time in the Assistance Formation of Ellesmere Island, Canada. Both species correlate the Roadian age of the Assistance Formation with contemporary deposits in Northern Russia and Bjørnøya, Norw...

Full description

Saved in:
Bibliographic Details
Published inCurrent biology
Main Authors Ernst, Andrej, Nakrem, Hans Arne
Format Journal Article
LanguageNorwegian
Published Cell Press 2021
Online AccessGet full text

Cover

More Information
Summary:Rhombotrypella superangustata and Dyscritellina fuglensis (Bryozoa, Trepostomata) were found for the first time in the Assistance Formation of Ellesmere Island, Canada. Both species correlate the Roadian age of the Assistance Formation with contemporary deposits in Northern Russia and Bjørnøya, Norway. They possess robust erect colonies adapted for shallow shelf conditions with moderate energy depositional environment with low sedimentation rate and hard substrate.
ISSN:0960-9822
1879-0445