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.i.Henanotheca qingyunensis./i. sp. nov., a filicalean fern from the Lopingian of Southwest China
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SYSNO ASEP 0585547 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Henanotheca qingyunensis sp. nov., a filicalean fern from the Lopingian of Southwest China Tvůrce(i) Guo, Y. (CN)
Zhou, Y. (CN)
Pšenička, J. (CZ)
Bek, Jiří (GLU-S) RID, SAI, ORCID
Votočková Frojdová, Jana (GLU-S) RID, SAI, SAI
Feng, Z. (CN)Zdroj.dok. Palaeontographica Abteilung B-Palaeophytologie Palaeobotany-Palaeophytology. - : E. Schweizerbart'sche Verlagsbuchhandlung - ISSN 2194-900X
Roč. 305, 5-6 (2024), s. 193-210Poč.str. 18 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova sporangial groups ; annulate sporangia ; in situ spores ; sphenopteroid pinnules ; late Permian ; Cathaysian Flora Obor OECD Geology CEP GA19-06728S GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora GLU-S - RVO:67985831 UT WOS 001165613800001 EID SCOPUS 85194264906 DOI https://doi.org/10.1127/palb/2024/0082 Anotace Filicalean ferns exhibit a high degree of species diversity during the Lopingian (late Permian) epoch, although most fossil-species are preserved only as small isolated fragments of fronds, pinnules, or stems. Among these ferns, Henanotheca was recently collected from the Xuanwei Formation of Yunnan Province, Southwest China. The well-preserved sporangia and in situ spores permit the emendation of the fossil-genus Henanotheca and the establishment of a fossil-species H. qingyunensis Y.Guo, Zhou et Feng sp. nov. The new fossil-species is characterized by alternately arranged and sphenopteroid fertile pinnules with sporangial groups located at the pinnule lobes abaxially. Ovoidal to ellipsoid sporangia are irregularly grouped and bear semi-equatorial annuli. The sporangial wall has one layer of cells. Trilete spores of the Waltzispora type are described as in situ for the first time. The distinctive characteristics of sporangia and spores and the absence of vegetative anatomy would support Henanotheca being assigned to incertae sedis. Although the origin and evolution of filicaleans remain elusive, they first appeared in the Euramerican floristic region during the Carboniferous and then migrated to the Cathaysian floristic region during the Permian. Filicalean sporangia display an evolutionary trend to extant Filicales in this period. Pracoviště Geologický ústav Kontakt Jana Popelková, popelkova@gli.cas.cz, Tel.: 226 800 273 Rok sběru 2025 Elektronická adresa https://www.schweizerbart.de/papers/palb/detail/prepub/103583/Henanotheca_qingyunensis_sp_nov_a_filicalean_fern_?af=crossref
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