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Paradoxidid trilobites from a mid-Cambrian (Series 3, stage 5) limestone concretion from Jämtland, central Sweden
The Natural History Museum, Cromwell Road, London SW7 5BD, UK.
Ravnholtvej 23, DK-7130 Juelsminde, Denmark.
Uppsala University, Music and Museums, Museum of Evolution.ORCID iD: 0000-0001-8769-3572
2016 (English)In: Bulletin of Geosciences, ISSN 1214-1119, E-ISSN 1802-8225, Vol. 91, no 3, p. 515-552Article in journal (Refereed) Published
Abstract [en]

This paper describes the morphology and discusses the taxonomy of the paradoxidid trilobites present in the moult ensemble described by Ebbestad et al. (2013) from a huge limestone concretion of the Alum Shale Formation collected at Östnår, Jämtland. Two species, both represented by numerous but small complete holaspid specimens are described as new: Eccaparadoxides? thorslundi sp. nov. is distinctive, but its generic position is considered doubtful; Hydrocephalus spinulosus is similar to H. vikensis Rushton & Weidner, 2007 (also present as a rarity in the moult ensemble) and is partly distinguished from it by characters of the thorax. Also illustrated are a few specimens that have been collected at various localities between Hackås and Brunflo. They appear to represent individuals of some of the species in the moult ensemble and are about twice the size of their type specimens.

Place, publisher, year, edition, pages
2016. Vol. 91, no 3, p. 515-552
National Category
Other Earth and Related Environmental Sciences
Research subject
Earth Science with specialization in Historical Geology and Palaeontology
Identifiers
URN: urn:nbn:se:uu:diva-311367DOI: 10.3140/bull.geosci.1606ISI: 000392741400004OAI: oai:DiVA.org:uu-311367DiVA, id: diva2:1059874
Available from: 2016-12-26 Created: 2016-12-26 Last updated: 2017-11-29Bibliographically approved

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