A new marattialean fern, Pectinangium xuanweiense sp. nov., from the Lopingian of Southwest China
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00228745%3A_____%2F21%3AN0000014" target="_blank" >RIV/00228745:_____/21:N0000014 - isvavai.cz</a>
Alternative codes found
RIV/67985831:_____/21:00546575
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S003466672100124X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S003466672100124X?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.revpalbo.2021.104500" target="_blank" >10.1016/j.revpalbo.2021.104500</a>
Alternative languages
Result language
angličtina
Original language name
A new marattialean fern, Pectinangium xuanweiense sp. nov., from the Lopingian of Southwest China
Original language description
A new species of adpressed marattialean fern with vegetative and fertile pinnules, Pectinangium xuanweiense sp. nov., is described fromthe Lopingian (upper Permian) in eastern Yunnan andwestern Guizhou provinces, Southwest China. The fronds of this new species are at least bipinnate, with linear to lanceolate ultimate pinnae. The pinnules are alternately arranged and pecopterid-type with pinnate venation. Fertile pinnules show recurved margins and abaxially bear a row of synangia on each side of the midvein. Synangia are 0.7 mm long and 0.4 mm wide on average, arranged in a density of approximately 16 per centimeter. Each synangium consists of four sporangia that are completely fused in well-regulated rectangular/ovoid shapes in the distal view. Sporangia are exannulate, 370 μm long and 200 μm wide on average. The sporangial walls are composed of at least three layers of elongated rectangular to polygonal cells. In situ spores are circular to oval, 25–(30)–35 μm in diameter, with trilete marks and microverrucate sculptures. Ultrastructural investigations indicated that the exine encompasses a perine, sexine, and nexine. In situ spores correspond to Verrucosisporites if found as sporae dispersae, and thus indicate that P. xuanweiense sp. nov. belongs to the Acitheca miltonii Group (palynological grouping) of Paleozoic marattialeans. Our study provides insight into the diversity of late Permian marattialeans in the tropics of the eastern Paleo-Tethys ocean.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10506 - Paleontology
Result continuities
Project
<a href="/en/project/GA19-06728S" target="_blank" >GA19-06728S: How precisely can we reconstruct Carboniferous tropical forests? Examples from the Czech Republic and China</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Review of Palaeobotany and Palynology
ISSN
0034-6667
e-ISSN
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Volume of the periodical
295
Issue of the periodical within the volume
prosinec
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
104500
UT code for WoS article
000700047300002
EID of the result in the Scopus database
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