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An association of problematic corals, crinoids and parasites from the Sholeshook Limestone Formation (Ordovician) of Wales
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Palaeobiology.
2016 (English)In: Geological Journal, ISSN 0072-1050, E-ISSN 1099-1034, Vol. 51, no 2, 212-222 p.Article in journal (Refereed) PublishedText
Abstract [en]

Coralla of the solitary coral Talfania calicula gen. et sp. nov. from the Upper Ordovician (Ashgill Series; Katian Stage) of Llanddowror, South Wales, UK, are often coiled around crinoid columnals, suggesting a premortem association between some of the corals and living crinoids. Irregularities within the deepest part of the open calice imply infestation of T. calicula by parasitic worms. Talfania calicula is distinguished from contemporaneous rugose corals by its lack of septa within the calice and its systematic position within Zoantharia is unresolved. Pitted calical grooves are interpreted as attachment scars of desmocytes connecting the soft tissues to the exoskeleton. Coral and crinoid remains in the assemblage are bored by postmortem microendoliths.

Place, publisher, year, edition, pages
2016. Vol. 51, no 2, 212-222 p.
Keyword [en]
Zoantharia, coral-crinoid symbiosis, parasites, endoliths, desmocytes, Ordovician
National Category
URN: urn:nbn:se:uu:diva-288612DOI: 10.1002/gj.2617ISI: 000372734100003OAI: oai:DiVA.org:uu-288612DiVA: diva2:926099
Available from: 2016-05-04 Created: 2016-04-28 Last updated: 2016-05-04Bibliographically approved

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