Article (Scientific journals)
New data on the incertae sedis biota and foraminifera of the mid-Famennian Baelen Member (Late Devonian, eastern Belgium)
Vachard, Daniel; Dreesen, Roland; Mottequin, Bernard et al.
2016In Palaeobiodiversity and Palaeoenvironments, 21, p. 1-20
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New data on the incertae sedis biota and foraminifera of the mid-Famennian Baelen Member (Late Devonian, eastern Belgium) | SpringerLink.pdf
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Keywords :
Famennian; carbonate mounds; Belgium (Wallonia); Incertae sedis algae; Protists; Foraminifers
Abstract :
[en] The Baelen mud mounds in eastern Belgium represent a local member of the mid-Famennian Souverain-Pré Formation (an important carbonate interval within the Condroz Sandstone Group). The lower part of this member contains silty bioclastic wackestones and packstones that are particularly rich in the problematical algae Serrisinella and Dreesenullella. Plurilocular foraminifera (Septabrunsiina and Baelenia) and rare solitary rugose corals (Neaxon? sp.) occur within crinoidal grainstones (tempestites) interfingering with the latter bioclastic wacke-/packstones and red-stained stromatactoid spiculitic mudstones (carbonate mound core facies). Although Serrisinella is quite common in other mid- and late Famennian limestones, of Belgium, Dreesenulella is almost endemic of the Baelen Member. Both genera apparently inhabited the muddy sediment-water interface, constituting meadows probably in zones of intermittently strong bottom currents. The taxonomic similarities between Dreesenulella and Saccamminopsis are discussed, as well as their possible affinities with the Xenophophyrea and Kokomiacea. Moreover, the first stages of the Septabrunsiina–Baelenia foraminiferal lineage are analysed in detail. The taxonomic and palaoecological positioning of Serrissinella and Dreesenulella adds to the discussion about the palaeobathymetry of the Baelen mud mounds and corroborates sedimentological evidence for their relatively shallow carbonate ramp depositional setting.
Research Center/Unit :
Université de Lille Sciences et Technologies (UFR Sciences de la Terre), Royal Belgian Institute of Natural Sciences (O.D. Earth and History of Life) & ULG-Département de géologie (Evolution and Diversity Dynamics Lab))
Disciplines :
Earth sciences & physical geography
Author, co-author :
Vachard, Daniel;  Université de Lille-Sciences et Technologies > UFR Sciences de la Terre, UMR CNRS 8198 > Evolution, Ecologie et Paléontologie
Dreesen, Roland;  Royal Belgian Institute of Natural Sciences > O.D. Earth and History of Life
Mottequin, Bernard;  Royal Belgian Institute of Natural Sciences > O.D. Earth and History of Life
Marion, Jean-Marc ;  Université de Liège > Département de géologie > Evolution and diversity dynamics lab
Language :
English
Title :
New data on the incertae sedis biota and foraminifera of the mid-Famennian Baelen Member (Late Devonian, eastern Belgium)
Publication date :
21 December 2016
Journal title :
Palaeobiodiversity and Palaeoenvironments
ISSN :
1867-1594
eISSN :
1867-1608
Publisher :
Springer, Senckenberg, Germany
Special issue title :
Climate change and biodiversity patterns in the mid-Paleozoic
Volume :
21
Pages :
1-20
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
This article is a contribution to the special issue “Climate change and biodiversity patterns in the mid-Palaeozoic”. Erratum published online (early February 2017): see 1st "URL complémentaire".
Available on ORBi :
since 22 January 2017

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