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First evidence of the Cretaceous decapod crustacean Protocallianassa from Sweden
Department of Geology, Lund University.
Department of Geology, Lund University.
Swedish Museum of Natural History, Department of Paleobiology. Department of Geology, Lund University, Sweden.ORCID iD: 0000-0003-2987-5559
2016 (English)In: Geological Society, London, Special Publications, ISSN ISSN 0305-8719, Vol. 434, 241-250 p.Article in journal (Refereed) Published
Abstract [en]

An assemblage of the burrowing ghost shrimp, Protocallianassa faujasi, is described, providing the first evidence of this decapod species from Sweden. The fossils occur in successions of the informal earliest late Campanian Belemnellocamax balsvikensis Zone at Åsen and the latest early Campanian B. mammillatus zone at Ivö Klack, both in the Kristianstad Basin of NE Skåne. Numerous, heavily calcified chelipeds were found within a restricted bed at Åsen that was rich in carbonate-cemented nodules. Based on the burrowing lifestyle of modern mud shrimps, we interpret these nodules as infilled burrow chambers. The low abundance of molluscs within the Protocallianassa beds is also consistent with analogous extant communities, indicating that a similar ecologically exclusive relationship ruled within the Late Cretaceous shallow marine ecosystems.

Place, publisher, year, edition, pages
London: Geological Society of London, 2016. Vol. 434, 241-250 p.
Keyword [en]
ghost shrimp, Kristianstad Basin, Skåne, Campanian, ichnofossils
National Category
Other Earth and Related Environmental Sciences
Research subject
Ecosystems and species history
Identifiers
URN: urn:nbn:se:nrm:diva-2052DOI: doi.org/10.1144/SP434.6OAI: oai:DiVA.org:nrm-2052DiVA: diva2:1055056
Projects
2015-04264 Utgör mass-utdöenden en driftkraft för evolutionen? Studier från krita-paleogengränsenSwedish Research Council 349-2007-8705 Lund University Carbon Cycle Centre (LUCCI)
Funder
Swedish Research Council, 2015-04264Swedish Research Council, 349-2007-8705
Available from: 2016-12-10 Created: 2016-12-10 Last updated: 2016-12-10

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Publisher's full texthttp://dx.doi.org/10.1144/SP434.6

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