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Late Ordovician (Katian) spores in Sweden: oldest land plant remains from Baltica
Swedish Museum of Natural History, Department of Paleobiology.ORCID iD: 0000-0003-2987-5559
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2014 (English)In: GFF, ISSN 1103-5897, E-ISSN 2000-0863, Vol. 136, no 1, 16-21 p.Article in journal (Refereed) Published
Abstract [en]

A palynological study of the Ordovician–Silurian boundary (Katian–Rhuddanian) succession in the Röstaånga-1 drillcore, southern Sweden, has been performed. The lithology is dominated by mudstone and graptolitic shale, with subordinate limestone, formed in the deeper marine halo of southernBaltica. The palynological assemblages are dominated by marine microfossils, mainly chitinozoans and acritarchs. Sparse but well-preserved cryptospores, including Tetrahedraletes medinensis, Tetrahedraletes grayii and Pseudodyadospora sp., were encountered in the Lindegård Formation (late Katian–early Hirnantian), with the oldest record just above the first appearance of the graptolite species Dicellograptus complanatus. This represents the earliest record of early land plant spores from Sweden and possibly also from Baltica and implies that land plants had migrated to the palaeocontinent Baltica by at least the Late Ordovician.

Place, publisher, year, edition, pages
2014. Vol. 136, no 1, 16-21 p.
Keyword [sv]
Ordovicium, tidiga landväxter, Baltica, sporer
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Research subject
Ecosystems and species history
URN: urn:nbn:se:nrm:diva-1417DOI: 10.1080/11035897.2014.899266OAI: diva2:873003
Available from: 2015-11-21 Created: 2015-11-21 Last updated: 2015-11-23Bibliographically approved

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Vajda, Vivi
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