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Widespread preservation of small carbonaceous fossils (SCFs) in the early Cambrian of North Greenland
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Palaeobiology.ORCID iD: 0000-0002-5774-9114
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Palaeobiology.
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Palaeobiology.ORCID iD: 0000-0001-9007-4369
Uppsala University, Music and Museums, Museum of Evolution. Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Palaeobiology.
2018 (English)In: Geology, ISSN 0091-7613, E-ISSN 1943-2682, Vol. 46, no 2, p. 107-110Article in journal (Refereed) Published
Abstract [en]

The early Cambrian (ca. 518 Ma) Sirius Passet Lagerstätte of North Greenland is one of the most celebrated sites bearing fossils of soft-bodied organisms, and provides key insights into the Cambrian explosion of animal life. Unlike the younger Burgess Shale (508 Ma), the Sirius Passet biota does not preserve original carbonaceous material because of its history of metamorphic heating. Nearby sediments from within the same formation, however, have escaped the worst effects of thermal alteration. We report an entirely new diversity of metazoan remains preserved in a Burgess Shale–type fashion from sediments throughout the Buen Formation, in the form of small carbonaceous fossils (SCFs). The assemblages include the oldest known pterobranch hemichordates, diverse cuticular spines of scalidophoran worms, demineralized trilobite cuticle, bivalved arthropods (Spinospitella-like and Isoxys-like forms), protoconodonts, and a variety of less phylogenetically constrained metazoan and protistan forms. Together these SCFs capture exceptional microanatomical details of early Cambrian metazoans and offer new insights into taphonomic pathways at Sirius Passet and the nature of Burgess Shale–type preservation.

Place, publisher, year, edition, pages
2018. Vol. 46, no 2, p. 107-110
Keywords [en]
Cambrian, small carbonaceous fossils, Burgess Shale-type preservation, Greenland
National Category
Geology Other Earth and Related Environmental Sciences
Research subject
Earth Science with specialization in Historical Geology and Palaeontology
Identifiers
URN: urn:nbn:se:uu:diva-337294DOI: 10.1130/G39788.1ISI: 000427093900005OAI: oai:DiVA.org:uu-337294DiVA, id: diva2:1174238
Available from: 2018-01-15 Created: 2018-01-15 Last updated: 2018-05-18Bibliographically approved

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Publisher's full texthttps://pubs.geoscienceworld.org/gsa/geology/article-abstract/524863/widespread-preservation-of-small-carbonaceous?redirectedFrom=fulltext

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Slater, BenWillman, SebastianBudd, Graham E.Peel, John Stuart

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