A comparative study on in situ spores of some Paleozoic noeggerathialeans and their implications for dispersed spore assemblages

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F21%3A00546273" target="_blank" >RIV/67985831:_____/21:00546273 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0034666721000038?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0034666721000038?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.revpalbo.2021.104379" target="_blank" >10.1016/j.revpalbo.2021.104379</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A comparative study on in situ spores of some Paleozoic noeggerathialeans and their implications for dispersed spore assemblages

Popis výsledku v původním jazyce

The presence of noeggerathialeans has never been recognized in palynology in the Carboniferous and Permian floras, although they are a very common group as evidenced by megafossil floras. Noeggerathialeans including over 20 genera and 50 species are quite common in the Carboniferous and Permian floras and especially in Cathaysia (present-day China and East Asia). While the spores of this group will have been identified in the dispersed record, they have not been assigned to it. Our recent investigation on the Asselian peat-forming vegetation from the Wuda Coalfield in Inner Mongolia reveals that three species of the noeggerathialean plants Tingia and Paratingia (namely, Tingia unita, Paratingia wudensis and Paratingia sp. 1) are ubiquitous floral elements, and in some areas represent the dominant ecological plant group. In particular, most of the specimens are ontogenetically mature with well-developed reproductive organs. This presents an excellent opportunity to examine their in situ spores. In situ microspores are small (only 30 μm on average) and are assigned to the miospore genus Punctatisporites/Gulisporites. Megaspores are poorly preserved but only show evidence of a single functional megaspore per sporangium (monomegaspory) with megaspores of the Calamospora type but unexpanded and not completely filling the sporangia. Spores of Chinese Tingia and Paratingia species are surprisingly identical, both in terms of their morphology and dimensions, but are different from all other noeggerathialean spores produced by the genera Discinites, Noeggerathiaestrobus, Lacoea, Tingiostachya and Dorsalistachya. European and American Discinites species produced microspores of the Calamospora type unlike those of the Punctatisporites/Gulisporites type described here from Chinese Tingia, Paratingia and Discinites species so far known. In this context, noeggerathialean spores of Punctatisporites/Gulisporites from China have most likely been treated as the spores of sphenopsids in dispersed preservation, rather than being identified as the Sporae-dispersae of noeggerathialeans in the late Paleozoic landscapes of Cathaysia.

Název v anglickém jazyce

A comparative study on in situ spores of some Paleozoic noeggerathialeans and their implications for dispersed spore assemblages

Popis výsledku anglicky

The presence of noeggerathialeans has never been recognized in palynology in the Carboniferous and Permian floras, although they are a very common group as evidenced by megafossil floras. Noeggerathialeans including over 20 genera and 50 species are quite common in the Carboniferous and Permian floras and especially in Cathaysia (present-day China and East Asia). While the spores of this group will have been identified in the dispersed record, they have not been assigned to it. Our recent investigation on the Asselian peat-forming vegetation from the Wuda Coalfield in Inner Mongolia reveals that three species of the noeggerathialean plants Tingia and Paratingia (namely, Tingia unita, Paratingia wudensis and Paratingia sp. 1) are ubiquitous floral elements, and in some areas represent the dominant ecological plant group. In particular, most of the specimens are ontogenetically mature with well-developed reproductive organs. This presents an excellent opportunity to examine their in situ spores. In situ microspores are small (only 30 μm on average) and are assigned to the miospore genus Punctatisporites/Gulisporites. Megaspores are poorly preserved but only show evidence of a single functional megaspore per sporangium (monomegaspory) with megaspores of the Calamospora type but unexpanded and not completely filling the sporangia. Spores of Chinese Tingia and Paratingia species are surprisingly identical, both in terms of their morphology and dimensions, but are different from all other noeggerathialean spores produced by the genera Discinites, Noeggerathiaestrobus, Lacoea, Tingiostachya and Dorsalistachya. European and American Discinites species produced microspores of the Calamospora type unlike those of the Punctatisporites/Gulisporites type described here from Chinese Tingia, Paratingia and Discinites species so far known. In this context, noeggerathialean spores of Punctatisporites/Gulisporites from China have most likely been treated as the spores of sphenopsids in dispersed preservation, rather than being identified as the Sporae-dispersae of noeggerathialeans in the late Paleozoic landscapes of Cathaysia.

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 2021

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

17

Strana od-do

104379

Kód UT WoS článku

000707926400012

EID výsledku v databázi Scopus

2-s2.0-85100024209