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The problematic lingulate brachiopod Aulonotreta from the Ordovician (Dapingian-Darriwilian) of Baltoscandia
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Palaeobiology. Department of Geology, Northwest University, Xi’an, China.ORCID iD: 0000-0003-3629-0049
Department of Geology, Northwest University, Xi’an, China.
Department of Geology, Northwest University, Xi’an, China; Department of Biological Sciences, Macquarie University, Sydney, Australia.
Department of Geology, Northwest University, Xi’an, China.
2019 (English)In: Estonian journal of earth sciences, ISSN 1736-4728, E-ISSN 1736-7557, Vol. 68, no 4, p. 206-224Article in journal (Refereed) Published
Abstract [en]

The enigmatic and aberrant lingulate brachiopod Aulonotreta antiquissima (Eichwald) from the Dapingian (Volkhov Stage) Toila Formation of northern Estonia and St Petersburg area (Historical Region of Ingria, Ingermanland, or Inkerinmaa; English, Swedish, Finnish) is re-described together with the new species, Aulonotreta neptuni, from the lower Darriwilian (Kunda Stage, lower Valastean Substage) Holen Limestone on the Island of Öland, southern Sweden. The genus is presently endemic to Baltoscandia. The new well-preserved material of Aulonotreta permits an account of the musculature, micro-ornamentation and siphonotretoid-like and non-baculate shell structure, all of which were previously poorly understood. The aberrant morphology and musculature of Aulonotreta suggest that it was adapted to an entirely epifaunal and most likely ambitopic adult mode of life.

Place, publisher, year, edition, pages
2019. Vol. 68, no 4, p. 206-224
Keywords [en]
Brachiopoda, Linguliformea, Lingulata, Ordovician, Dapingian, Darriwilian, Estonia, St Petersburg area, Sweden
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-397395DOI: 10.3176/earth.2019.15OAI: oai:DiVA.org:uu-397395DiVA, id: diva2:1371463
Funder
Swedish Research Council, 2018-03390Available from: 2019-11-20 Created: 2019-11-20 Last updated: 2019-11-20Bibliographically approved

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Publisher's full texthttp://www.kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2019/issue_4/earth-2019-4-206-224.pdf

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