Anatomically-preserved tree-trunks in late Mississippian (Serpukhovian, late Pendleian-Arnsbergian) braided fluvial channel facies, near Searston, southwest Newfoundland, Canada
A-10-14 International audience Little is known of the Mississippian palaeobotany of Newfoundland, Canada. Here we improve this situation by describing anatomically-preserved tree-trunks from the Codroy Valley, southwest Newfoundland. The tree-trunks, which have incomplete lengths of up to 8.3 m, occ...
Published in: | Review of Palaeobotany and Palynology |
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Online Access: | https://hal.archives-ouvertes.fr/halsde-00502573 https://doi.org/10.1016/j.revpalbo.2010.02.009 |
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ftccsdartic:oai:HAL:halsde-00502573v1 2023-05-15T17:20:07+02:00 Anatomically-preserved tree-trunks in late Mississippian (Serpukhovian, late Pendleian-Arnsbergian) braided fluvial channel facies, near Searston, southwest Newfoundland, Canada Falcon-Lang, Howard J. Galtier, Jean School of Earth Sciences Bristol University of Bristol Bristol Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP) Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD France-Sud ) 2010 https://hal.archives-ouvertes.fr/halsde-00502573 https://doi.org/10.1016/j.revpalbo.2010.02.009 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.revpalbo.2010.02.009 halsde-00502573 https://hal.archives-ouvertes.fr/halsde-00502573 doi:10.1016/j.revpalbo.2010.02.009 PRODINRA: 247479 WOS: 000278216200007 ISSN: 0034-6667 Review of Palaeobotany and Palynology https://hal.archives-ouvertes.fr/halsde-00502573 Review of Palaeobotany and Palynology, Elsevier, 2010, 160 (3), pp.154-162. ⟨10.1016/j.revpalbo.2010.02.009⟩ Serpukhovian Mississippian Carboniferous Newfoundland fossil wood Pitus pteridosperm tree-rings braided fluvial [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.BE.EVO]Environmental Sciences/Biodiversity and Ecology/domain_sde.be.evo info:eu-repo/semantics/article Journal articles 2010 ftccsdartic https://doi.org/10.1016/j.revpalbo.2010.02.009 2021-10-17T01:58:14Z A-10-14 International audience Little is known of the Mississippian palaeobotany of Newfoundland, Canada. Here we improve this situation by describing anatomically-preserved tree-trunks from the Codroy Valley, southwest Newfoundland. The tree-trunks, which have incomplete lengths of up to 8.3 m, occur in braided fluvial channel facies of the Searston Formation, a late Pendleian-Arnsbergian (upper Serpukhovian, 326.4-325 Ma) unit. Three morphotypes are present. The first, Pitus primaeva Witham shows exceptionally wide rays (1-8-seriate, rarely to 16-seriate) and tracheids with multiseriate pits. The second, cf. Pitus withamii (Lindley and Hutton) Witham has rather narrower rays (1-3-seriate), and unusually shows ray cells pitted on all walls. Both morphotypes probably represent arborescent pteridosperms. The third, Protopitys scotica Walton is characterized by the occurrence of very short rays (mode: 1 cell high), and represents a putative progymnosperm. Associated megafloral assemblages are dominated by Diplotmema and Adiantites, which may have comprised the foliage of the lignophytes described herein. However, in marked contrast, palynological assemblages suggest that arborescent lycopsids, sphenopsids and ferns dominated regional vegetation make-up. One resolution to this paradox is the lignophytes may have been growing on levees or well-drained uplands to the south, and washed into the basin in river channels, while pteridophytic vegetation occupied the floodplain. This inference is supported by occurrence of irregular growth interruptions in the fossil woods, suggesting trees grew under a seasonally dry tropical climate Article in Journal/Newspaper Newfoundland Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Canada Lindley ENVELOPE(159.100,159.100,-81.767,-81.767) Review of Palaeobotany and Palynology 160 3-4 154 162 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Serpukhovian Mississippian Carboniferous Newfoundland fossil wood Pitus pteridosperm tree-rings braided fluvial [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.BE.EVO]Environmental Sciences/Biodiversity and Ecology/domain_sde.be.evo |
spellingShingle |
Serpukhovian Mississippian Carboniferous Newfoundland fossil wood Pitus pteridosperm tree-rings braided fluvial [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.BE.EVO]Environmental Sciences/Biodiversity and Ecology/domain_sde.be.evo Falcon-Lang, Howard J. Galtier, Jean Anatomically-preserved tree-trunks in late Mississippian (Serpukhovian, late Pendleian-Arnsbergian) braided fluvial channel facies, near Searston, southwest Newfoundland, Canada |
topic_facet |
Serpukhovian Mississippian Carboniferous Newfoundland fossil wood Pitus pteridosperm tree-rings braided fluvial [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.BE.EVO]Environmental Sciences/Biodiversity and Ecology/domain_sde.be.evo |
description |
A-10-14 International audience Little is known of the Mississippian palaeobotany of Newfoundland, Canada. Here we improve this situation by describing anatomically-preserved tree-trunks from the Codroy Valley, southwest Newfoundland. The tree-trunks, which have incomplete lengths of up to 8.3 m, occur in braided fluvial channel facies of the Searston Formation, a late Pendleian-Arnsbergian (upper Serpukhovian, 326.4-325 Ma) unit. Three morphotypes are present. The first, Pitus primaeva Witham shows exceptionally wide rays (1-8-seriate, rarely to 16-seriate) and tracheids with multiseriate pits. The second, cf. Pitus withamii (Lindley and Hutton) Witham has rather narrower rays (1-3-seriate), and unusually shows ray cells pitted on all walls. Both morphotypes probably represent arborescent pteridosperms. The third, Protopitys scotica Walton is characterized by the occurrence of very short rays (mode: 1 cell high), and represents a putative progymnosperm. Associated megafloral assemblages are dominated by Diplotmema and Adiantites, which may have comprised the foliage of the lignophytes described herein. However, in marked contrast, palynological assemblages suggest that arborescent lycopsids, sphenopsids and ferns dominated regional vegetation make-up. One resolution to this paradox is the lignophytes may have been growing on levees or well-drained uplands to the south, and washed into the basin in river channels, while pteridophytic vegetation occupied the floodplain. This inference is supported by occurrence of irregular growth interruptions in the fossil woods, suggesting trees grew under a seasonally dry tropical climate |
author2 |
School of Earth Sciences Bristol University of Bristol Bristol Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP) Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD France-Sud ) |
format |
Article in Journal/Newspaper |
author |
Falcon-Lang, Howard J. Galtier, Jean |
author_facet |
Falcon-Lang, Howard J. Galtier, Jean |
author_sort |
Falcon-Lang, Howard J. |
title |
Anatomically-preserved tree-trunks in late Mississippian (Serpukhovian, late Pendleian-Arnsbergian) braided fluvial channel facies, near Searston, southwest Newfoundland, Canada |
title_short |
Anatomically-preserved tree-trunks in late Mississippian (Serpukhovian, late Pendleian-Arnsbergian) braided fluvial channel facies, near Searston, southwest Newfoundland, Canada |
title_full |
Anatomically-preserved tree-trunks in late Mississippian (Serpukhovian, late Pendleian-Arnsbergian) braided fluvial channel facies, near Searston, southwest Newfoundland, Canada |
title_fullStr |
Anatomically-preserved tree-trunks in late Mississippian (Serpukhovian, late Pendleian-Arnsbergian) braided fluvial channel facies, near Searston, southwest Newfoundland, Canada |
title_full_unstemmed |
Anatomically-preserved tree-trunks in late Mississippian (Serpukhovian, late Pendleian-Arnsbergian) braided fluvial channel facies, near Searston, southwest Newfoundland, Canada |
title_sort |
anatomically-preserved tree-trunks in late mississippian (serpukhovian, late pendleian-arnsbergian) braided fluvial channel facies, near searston, southwest newfoundland, canada |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.archives-ouvertes.fr/halsde-00502573 https://doi.org/10.1016/j.revpalbo.2010.02.009 |
long_lat |
ENVELOPE(159.100,159.100,-81.767,-81.767) |
geographic |
Canada Lindley |
geographic_facet |
Canada Lindley |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
ISSN: 0034-6667 Review of Palaeobotany and Palynology https://hal.archives-ouvertes.fr/halsde-00502573 Review of Palaeobotany and Palynology, Elsevier, 2010, 160 (3), pp.154-162. ⟨10.1016/j.revpalbo.2010.02.009⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.revpalbo.2010.02.009 halsde-00502573 https://hal.archives-ouvertes.fr/halsde-00502573 doi:10.1016/j.revpalbo.2010.02.009 PRODINRA: 247479 WOS: 000278216200007 |
op_doi |
https://doi.org/10.1016/j.revpalbo.2010.02.009 |
container_title |
Review of Palaeobotany and Palynology |
container_volume |
160 |
container_issue |
3-4 |
container_start_page |
154 |
op_container_end_page |
162 |
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1766097527672668160 |