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Trilobites from the North: lower Cambrian olenelloids fromthe Digermulen Peninsula, Arctic Norway
Uppsala University, Music and Museums, Museum of Evolution.ORCID iD: 0000-0001-8769-3572
Tromsø Universitetsmuseum.
Rennesveien 14, N-4513 Mandal, Norway.
Department of Geological Sciences, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa.
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2016 (English)In: 3. Trilobiten-Tagung [Berlin, 8. und 9. Oktober 2016] - Kurzfassungen der Vortrage / [ed] Zwanzig, M., Halle, Saale: Ampyx-Verlag , 2016Conference paper, Abstract (Other academic)
Abstract [en]

Scandinavian lower Cambrian stratigraphy is largely trilobite based, defined by the occurrence of distincttrilobite assemblages with classic olenelloid trilobites like Holmia and Kjerulfia. Except for a few localities in Scandinavia where these taxa are fairly common, most occurrences are represented by a single or a fewincomplete specimens at the best. Since 2011 a collecting effort in the lower Cambrian strata on the Digermulen Peninsula, Arctic Norway has yielded close to 100 specimens of at least three different olenelloid trilobite taxa, including Kjerulfia lata, Kjerulfia sp. and Elliptocephalus sp., as well as an ellipsocephalid. These specimens are found in a narrow stratigraphical interval in the silty mudstone of the Duolbagaisa Formation,and are accompanied by rich material of organic walled microfossils and trace fossils. The age constraints onthe occurrence are therefore well established, placing the trilobites in the Holmia kjerulfi assemblage Zone.Compared to the classical T0mten locality in the Mjösa area, southern Norway, the Digermulen Peninsula assemblage lacks Holmia kjerulfi. Ellipsocephalids are found with the new material and also slightly higher in the succession. Although the occurrence of trilobites in the Duolbagaisa Formation have been known for along time, the new extensive trilobite material is both better preserved and more abundant, even compared tomost other places in Scandinavia. This ensures that this succession will be a major reference for lower Cambrian trilobite zonation in this part of the world.

Place, publisher, year, edition, pages
Halle, Saale: Ampyx-Verlag , 2016.
Keyword [en]
Digermulen Peninsula, Olenelloid trilobites, Cambrian
National Category
Other Earth and Related Environmental Sciences
Research subject
Earth Science with specialization in Historical Geology and Palaeontology
URN: urn:nbn:se:uu:diva-312213ISBN: 978-3-932795-39-8OAI: oai:DiVA.org:uu-312213DiVA: diva2:1062669
3. Trilobiten-Tagung
The Digermulen Early Life Research Group
Available from: 2017-01-07 Created: 2017-01-07 Last updated: 2017-01-07

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Ebbestad, Jan Ove R.
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