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Ferns and fern allies from the Carnian (Upper Triassic) of Lunz am See, Lower Austria: A melting pot of Mesozoic fern vegetation
LWL-Museum of Natural History, Münster, Germany.ORCID iD: 0000-0003-0933-8115
Swedish Museum of Natural History, Department of Paleobiology. (Paleobiologi)ORCID iD: 0000-0002-4241-9075
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2018 (English)In: Palaeontographica. Abteilung B, Palaophytologie, ISSN 0375-0299, Vol. 297, no 1–6, p. 1-101Article in journal (Refereed) Published
Abstract [en]

The floral assemblage from the Carnian (Upper Triassic) of Lunz-am-See in Austria contains a rich and diverse array of ferns and fern allies, most of which have been considered only marginally, some have been described but more than a century ago and the majority have never been illustrated. Therefore, we here provide a detailed analysis of these taxa accompanied by extensive descriptions, detailed illustrations and colour restorations of the plants. We identified 17 species of lycophytes, sphenophytes and pteridophytes assignable to 14 genera in seven families. One taxon could be identified to class level only. One new genus of dipteridacean ferns (viz. Digitopteris C.Pott et Bomfleur gen. nov.), so far monotypic, is here described from Lunz with its type species Digitopteris repanda C.Pott et Bomfleur sp. nov. The Lunz flora comprises an interesting mixture of eusporangiate Marattiales and leptosporangiate Osmundales, Gleicheniales and Schizaeales; the former representing a rather primitive group of ferns. The co-occurrence of eusporangiate and leptosporangiate ferns renders the Lunz flora important given the fact that eusporangiate ferns were predominating over more modern, leptosporangiate forms during the Paleozoic, whereas they typically constitute only subordinate components in fern vegetation since the mid-Mesozoic until today. Among the leptosporangiate forms, the species from Lunz represent, due to their Triassic age, more primitive forms, which probably were rather growth-restricted thriving as herbaceous understorey layer among the shade of the eusporangiate, tree-like marattialean ferns.

Place, publisher, year, edition, pages
Bonn: E. Schweizerbart'sche Verlagsbuchhandlung, 2018. Vol. 297, no 1–6, p. 1-101
Keywords [en]
ferns; fern allies; lycophytes; sphenophytes; pteridophytes; Carnian; Upper Triassic; Lunz; Lower Austria
National Category
Natural Sciences Botany Geology
Research subject
Ecosystems and species history
Identifiers
URN: urn:nbn:se:nrm:diva-2891DOI: 10.1127/palb/2017/0059OAI: oai:DiVA.org:nrm-2891DiVA, id: diva2:1257628
Funder
Swedish Research Council, 2012–4375Available from: 2018-10-22 Created: 2018-10-22 Last updated: 2019-01-08Bibliographically approved

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Publisher's full texthttps://www.schweizerbart.de/papers/palb/detail/297/89122/Ferns_and_fern_allies_from_the_Carnian_Upper_Triassic_of_Lunz_am_See_Lower_Austria_A_melting_pot_of_Mesozoic_fern_vegetation

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Pott, ChristianBouchal, Johannes M.Yousif, RihabBomfleur, Benjamin
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