Yangopteris ascendens (Halle) gen. et comb. nov., a climbing alethopterid pteridosperm from the Asselian (earliest Permian)Wuda Tuff Flora

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00228745%3A_____%2F21%3AN0000008" target="_blank" >RIV/00228745:_____/21:N0000008 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/abs/pii/S0034666719303148?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0034666719303148?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.revpalbo.2020.104282" target="_blank" >10.1016/j.revpalbo.2020.104282</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Yangopteris ascendens (Halle) gen. et comb. nov., a climbing alethopterid pteridosperm from the Asselian (earliest Permian)Wuda Tuff Flora

Popis výsledku v původním jazyce

Alethopteris ascendens Halle is an endemic element in the Permian Cathaysian floras and is assumed to be amember of theMedullosales based on its alethopterid type foliage. Previous accounts have documented only its pinnae and bipinnate fronds, but other parts of the plant are unknown. Here we describe new specimens from the earliest Permian (Asselian)Wuda Tuff Flora that are identified as A. ascendens, but shows additional features including an integrated structure comprising an apical hooked prolongation with two lateral rows of hooked spines. Investigation of previously published specimens from another location confirms that they also bore the same kinds of hooked appendages. Systematic comparisons demonstrate that A. ascendens is distinct from previously recognized members of the genus but that it does not conform with the generic diagnosis, leading to the establishment of Yangopteris ascendens gen. et comb. nov. The appendages in Y. ascendens are interpreted as climbing devices, and are most similar to those previously described pteridospermKarinopteris from the Pennsylvanian of Euramerica. Similarities in the specialized climbing structures in Y. ascendens with alethopterid foliage and Karinopteris with mariopterid foliage suggest ecological convergence in unrelated pteridosperms within late Paleozoic peat-forming swampecosystems of Euramerica and Cathaysia. In addition, associated naked axes that cooccur with Y. ascendens are interpreted to be the main stems of the species. The growth habit of Y. ascendens is presumed to be a semi-self-supporting plant but also with a hook-climbing habit, with this similar to modern climbing palms.

Název v anglickém jazyce

Yangopteris ascendens (Halle) gen. et comb. nov., a climbing alethopterid pteridosperm from the Asselian (earliest Permian)Wuda Tuff Flora

Popis výsledku anglicky

Alethopteris ascendens Halle is an endemic element in the Permian Cathaysian floras and is assumed to be amember of theMedullosales based on its alethopterid type foliage. Previous accounts have documented only its pinnae and bipinnate fronds, but other parts of the plant are unknown. Here we describe new specimens from the earliest Permian (Asselian)Wuda Tuff Flora that are identified as A. ascendens, but shows additional features including an integrated structure comprising an apical hooked prolongation with two lateral rows of hooked spines. Investigation of previously published specimens from another location confirms that they also bore the same kinds of hooked appendages. Systematic comparisons demonstrate that A. ascendens is distinct from previously recognized members of the genus but that it does not conform with the generic diagnosis, leading to the establishment of Yangopteris ascendens gen. et comb. nov. The appendages in Y. ascendens are interpreted as climbing devices, and are most similar to those previously described pteridospermKarinopteris from the Pennsylvanian of Euramerica. Similarities in the specialized climbing structures in Y. ascendens with alethopterid foliage and Karinopteris with mariopterid foliage suggest ecological convergence in unrelated pteridosperms within late Paleozoic peat-forming swampecosystems of Euramerica and Cathaysia. In addition, associated naked axes that cooccur with Y. ascendens are interpreted to be the main stems of the species. The growth habit of Y. ascendens is presumed to be a semi-self-supporting plant but also with a hook-climbing habit, with this similar to modern climbing palms.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10506 - Paleontology

Projekt

<a href="/cs/project/GA19-06728S" target="_blank" >GA19-06728S: Jak přesně můžeme rekonstruovat karbonský tropický les? Příklady z České republiky a Číny</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Review of Palaeobotany and Palynology

ISSN

0034-6667

e-ISSN

—

Svazek periodika

294

Číslo periodika v rámci svazku

listopad

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

104282

Kód UT WoS článku

000707926400004

EID výsledku v databázi Scopus

2-s2.0-85090166010