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Ovatoryctocara granulata assemblage (Cambrian Series 2–Series 3 boundary) of Løndal, North Greenland
Swedish Museum of Natural History, Department of Paleobiology.
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2016 (English)In: Australasian Palaeontological Memoirs, Vol. 49, 241-282 p.Article in journal (Refereed) Published
Abstract [en]

Ovatoryctocara granulata Chernysheva 1962, a key trilobite in discussions concerning intercontinental correlation and the placement of the Cambrian Series 2–Series 3 boundary, occurs together with more than 60 other species in a fossil assemblage from the Henson Gletscher Formation of Løndal, Peary Land, North Greenland. Most taxa are described from acid residues in which diverse protoconodonts, helcionellid molluscs and hyoliths occur together with linguliformean brachiopods, bradoriids and other fossils. Recognition of an earlier First Appearance Datum for O. granulata in Løndal consolidates the biostratigraphic relationship between the assemblage and other partly co-occurring trilobites valuable for correlation within Laurentia and beyond. The assemblage can be correlated with the Ovatoryctocara Biozone, the basal biozone of the Molodian Stage in the Republic of Sakha (Yakutia, north-eastern Siberia), proposed as the earliest stage of Cambrian Series 3. New taxa are Tulenicornus? frykmani sp. nov., Conotheca hensoni sp. nov., Capitoconus borealis sp. nov., ‘Hipponicharion’ pearylandica sp. nov. and Liangshanella? nivalis sp. nov.

Place, publisher, year, edition, pages
2016. Vol. 49, 241-282 p.
Keyword [en]
Cambrian Series 2-3 boundary, North Greenland, Laurentia, shelly faunas
National Category
Natural Sciences
Research subject
The changing Earth
Identifiers
URN: urn:nbn:se:nrm:diva-1811OAI: oai:DiVA.org:nrm-1811DiVA: diva2:954669
Available from: 2016-08-23 Created: 2016-08-23 Last updated: 2017-10-12Bibliographically approved

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