Scolecopteris minuta sp. nov., a marattialean fern from the early Permian Wuda Tuff Flora of Inner Mongolia, China

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F21%3A00550740" target="_blank" >RIV/67985831:_____/21:00550740 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0034666719302349?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0034666719302349?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.revpalbo.2020.104246" target="_blank" >10.1016/j.revpalbo.2020.104246</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Scolecopteris minuta sp. nov., a marattialean fern from the early Permian Wuda Tuff Flora of Inner Mongolia, China

Popis výsledku v původním jazyce

A new and exceptionally hairy marattialean fern of an early Permian age having pecopterid sterile pinnules and strongly enrolled fertile pinnules, Scolecopteris minuta sp. nov., is described from the uppermost Taiyuan Formation of the Wuda coalfield in Inner Mongolia. The fertile fronds are at least tripinnate, with lanceolate to linear penultimate pinnae and oblong ultimate pinnae. Each pinnule bearing 6–9 ovate to fusiform pedicellate synangia, arranged abaxially in a single row to either side of the midvein. The deeply incised pinnulemargins are strongly reflexed downwards and inwards, closely enveloping and sheathing the synangia. Each synangiumis comprised of a ring of sporangia which were closely pressed together before dehiscence. The sterile fronds are of pecopterid form. Taken as a whole, the combination of characters of Scolecopteris minuta sp. nov. indicates attribution to the Latifolia group of Scolecopterids sensu Millay (1979). In its exceptionally hairy frond rachises and the equally exceptionally dense growth of smaller hairs both on the adaxial and abaxial sides of the fertile pinnules, and even on the tips of the synangia of S. minuta. We propose that this dense hairiness functioned primarily as a deterrent to spore-eating insects and perhaps also to other predators.

Název v anglickém jazyce

Scolecopteris minuta sp. nov., a marattialean fern from the early Permian Wuda Tuff Flora of Inner Mongolia, China

Popis výsledku anglicky

A new and exceptionally hairy marattialean fern of an early Permian age having pecopterid sterile pinnules and strongly enrolled fertile pinnules, Scolecopteris minuta sp. nov., is described from the uppermost Taiyuan Formation of the Wuda coalfield in Inner Mongolia. The fertile fronds are at least tripinnate, with lanceolate to linear penultimate pinnae and oblong ultimate pinnae. Each pinnule bearing 6–9 ovate to fusiform pedicellate synangia, arranged abaxially in a single row to either side of the midvein. The deeply incised pinnulemargins are strongly reflexed downwards and inwards, closely enveloping and sheathing the synangia. Each synangiumis comprised of a ring of sporangia which were closely pressed together before dehiscence. The sterile fronds are of pecopterid form. Taken as a whole, the combination of characters of Scolecopteris minuta sp. nov. indicates attribution to the Latifolia group of Scolecopterids sensu Millay (1979). In its exceptionally hairy frond rachises and the equally exceptionally dense growth of smaller hairs both on the adaxial and abaxial sides of the fertile pinnules, and even on the tips of the synangia of S. minuta. We propose that this dense hairiness functioned primarily as a deterrent to spore-eating insects and perhaps also to other predators.

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

1879-0615

Svazek periodika

294

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

104246

Kód UT WoS článku

000707926400003

EID výsledku v databázi Scopus

2-s2.0-85084533453