Floras of clastic and peat-forming Pennsylvanian wetlands: are they different? A case study from the Upper Radnice Coal (late Duckmantian), Kladno Coalfield, Czech Republic

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F16%3A00000105" target="_blank" >RIV/00025798:_____/16:00000105 - isvavai.cz</a>

Alternative codes found

RIV/00023272:_____/16:N0000058

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Floras of clastic and peat-forming Pennsylvanian wetlands: are they different? A case study from the Upper Radnice Coal (late Duckmantian), Kladno Coalfield, Czech Republic

Original language description

Floras of two ecologically and taphonomically different fossiliferous horizons associated with the late Duckmantian Upper Radnice Coal in the Kladno Ccoalfield are compared. These fossiliferous horizons include the Velká opuka that is a 10 cm thick volcaniclastic parting embedded in the coal and the Mydlák, which is a laminated mudstone in the roof of the same seam. Observations made in coal mines suggest that the Velká opuka bears autochthonous in situ preserved peat-forming vegetation, whereas the Mydlák is a lacustrine sediment that contains mostly drifted allochthonous and locally parautochthonous plant associations derived from coastal mostly clastic wetlands. Material from museum collections and our own field data show that floras of both fossiliferous horizons consist of representatives of the same families and genera but differ in their proportions and to a large part in species composition. This is demonstrated by only 40% overlap of 89 plant species identified in both horizons. Flora of the Velká opuka is dominated by lycopsids, either by arborescent lepidodendrids or by the sub-arborescent genus Omphalophloios. Co-dominant are sphenopsids and locally common are ferns and cordaitaleans. The Mydlák flora is more diverse and dominated by pteridosperms, whereas the proportion of lycopsids is lower and their composition partly different. Taxa abundant in the Velká opuka and nearly absent in the Mydlák include Omphalophloios feistmantelii, Lepidodendron longifolium and L. ophiurus. Abundant in the Mydlák and mostly missing in the Velká opuka are Laveineopteris tenuifolia, L. bohemica, Sphenopteris spiniformis, Eusphenopteris nummularia, Lepidodendron aculeatum and L. mannebachense. Prevalence of pteridosperms in clastic wetland floras of the Mydlák is in agreement with existing observations.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DB - Geology and mineralogy

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

Spanish Journal of Palaeontology

ISSN

2255-0550

e-ISSN

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Volume of the periodical

31

Issue of the periodical within the volume

1

Country of publishing house

ES - SPAIN

Number of pages

36

Pages from-to

145-180

UT code for WoS article

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EID of the result in the Scopus database

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