Revision of Ilfeldia and establishment of Ovulepteris gen. nov. from the Pennsylvanian of Europe, with a discussion on their concepts

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00228745%3A_____%2F17%3AN0000005" target="_blank" >RIV/00228745:_____/17:N0000005 - isvavai.cz</a>

Alternative codes found

RIV/00025798:_____/17:00000029

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0034666716300288" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0034666716300288</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/http://dx.doi.org/10.1016/j.revpalbo.2016.09.001" target="_blank" >http://dx.doi.org/10.1016/j.revpalbo.2016.09.001</a>

Result language

angličtina

Original language name

Revision of Ilfeldia and establishment of Ovulepteris gen. nov. from the Pennsylvanian of Europe, with a discussion on their concepts

Original language description

This paper presents a taxonomic revision of the fossil-genus Ilfeldia Remy and establishes the fossil-genus Ovulepteris nov. Three species of Ilfeldia (Ilfeldia jejunata, Ilfeldia gregoriensis nov. sp. and Ilfeldia polysporangiata comb. nov.) have been identified in Europe from localities in the Douro Basin (Portugal), Ilfeld Basin (Germany) and atManebach (Germany). The stratigraphic distribution of the fossil-genus varies from Gzhelian (Carboniferous) (I. jejunata and I. gregoriensis sp. nov.) to lower Asselian (Permian) (I. polysporangiata comb. nov.). All species of Ilfeldia are associatedwith larger taeniopterid leaves that could potentially be sterile equivalents due to dimorphism, and sterile and fertile leaves have been found in organic connection in I. gregoriensis sp. nov. Ilfeldia may be affiliated with the ferns or pteridosperms, but the systematic position is unclear. Ovulepteris gen. nov., which is established for leaves that bear ovule-type reproductive organs, has oblong leaves with a partly reduced leaf lamina, with reproductive organs situated on the leafmargin. The concept of Ovulepteris gen. nov. is based on material originally described by Obrhel (1957, 1965) under the names Ilfeldia robusta Obrhel and Ilfeldia lobecensis Obrhel from the Pennsylvanian of the Czech Republic. The new combinations Ovulepteris robusta (Obrhel) comb. nov. and Ovulepteris lobecensis (Obrhel) comb. nov. are established herein. Ovulepteris gen. nov. differs from Sobernheimia in the style of placement of the seeds. In Ovulepteris gen. nov., seeds are situated at the end of veins in protruding segments,whereas their attachment in Sobernheimia is uncertain but appear to be attached to the “midrib”. The diagnosis of Ovulepteris gen. nov. is not identical with the diagnoses of existing genera that have leaves with ovules, necessitating establishment of this newfossil-genus. The systematic position of all fossilgenera studied herein is uncertain, although they appear to be a member of the pteridosperms.

Czech name

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Czech description

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Type

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

CEP classification

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OECD FORD branch

10506 - Paleontology

Project

<a href="/en/project/GAP210%2F12%2F2053" target="_blank" >GAP210/12/2053: High-resolution floristic changes as a response to climatic dynamics during the Late Palaeozoic ice age recorded in the basins of the Bohemian Massif</a><br>

Continuities

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

Publication year

2017

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

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Volume of the periodical

Neuveden

Issue of the periodical within the volume

236

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

15

Pages from-to

59-73

UT code for WoS article

000390745200004

EID of the result in the Scopus database

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