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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10506 - Paleontology

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)

Publication year

2021

Confidentiality

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

Name of the periodical

Review of Palaeobotany and Palynology

ISSN

0034-6667

e-ISSN

—

Volume of the periodical

294

Issue of the periodical within the volume

listopad

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

15

Pages from-to

104282

UT code for WoS article

000707926400004

EID of the result in the Scopus database

2-s2.0-85090166010