The effects of the Jenkyns Event on the radiation of Early Jurassic dinoflagellate cysts
ABSTRACT: This contribution is an overview of the Early Jurassic dinoflagellate cysts of the Lusitanian Basin in Portugal, with particular emphasis on the effects of the Jenkyns Event (Toarcian Oceanic Anoxic Event) on the evolution of this planktonic group. We review and discuss data from 214 sampl...
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Online Access: | http://hdl.handle.net/10400.9/3598 https://doi.org/10.1144/SP514-2020-255 |
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ftlneg:oai:repositorio.lneg.pt:10400.9/3598 2023-05-15T15:04:40+02:00 The effects of the Jenkyns Event on the radiation of Early Jurassic dinoflagellate cysts Correia, Vânia Riding, James Duarte, L. V. Fernandes, Paulo Pereira, Zélia 2021-10-28T16:14:16Z http://hdl.handle.net/10400.9/3598 https://doi.org/10.1144/SP514-2020-255 eng eng Geological Society of London UID/ MAR/00350/2020 SFRH/BD/93950/2013 https://doi.org/10.1144/SP514-2020-255 Correia, Vânia F. [et.al.] - The effects of the Jenkyns Event on the radiation of Early Jurassic dinoflagellate cysts, In: Geological Society, London, Special Publications, nº 514, 26 May 2021 0305-8719 http://hdl.handle.net/10400.9/3598 cv-prod-2535483 doi:10.1144/SP514-2020-255 openAccess http://creativecommons.org/licenses/by/4.0/ CC-BY Palinologia Paleoambiente Jurássico inferior Bacia Lusitaniana (Portugal) article 2021 ftlneg https://doi.org/10.1144/SP514-2020-255 2021-12-01T01:00:56Z ABSTRACT: This contribution is an overview of the Early Jurassic dinoflagellate cysts of the Lusitanian Basin in Portugal, with particular emphasis on the effects of the Jenkyns Event (Toarcian Oceanic Anoxic Event) on the evolution of this planktonic group. We review and discuss data from 214 samples from six Lower Jurassic successions (upper Sinemurian to upper Toarcian) in the Lusitanian Basin. The late Pliensbachian radiation of dinoflagellate cysts was well recognized in this basin. The pre-Jenkyns Event interval is highly productive, with maximum abundance and species richness values. However, this palaeoenvironmental perturbation severely affected the evolution of this group for the remainder of the Early Jurassic. The prolonged recovery of the dinoflagellates in the Toarcian following the Jenkyns Event is not typical of the northern regions (Arctic and Boreal realms), where new species began to evolve earlier compared with southern European basins. info:eu-repo/semantics/publishedVersion Article in Journal/Newspaper Arctic Laboratório Nacional de Energia e Geologia: Repositório Científico do LNEG Arctic Geological Society, London, Special Publications 514 1 13 30 |
institution |
Open Polar |
collection |
Laboratório Nacional de Energia e Geologia: Repositório Científico do LNEG |
op_collection_id |
ftlneg |
language |
English |
topic |
Palinologia Paleoambiente Jurássico inferior Bacia Lusitaniana (Portugal) |
spellingShingle |
Palinologia Paleoambiente Jurássico inferior Bacia Lusitaniana (Portugal) Correia, Vânia Riding, James Duarte, L. V. Fernandes, Paulo Pereira, Zélia The effects of the Jenkyns Event on the radiation of Early Jurassic dinoflagellate cysts |
topic_facet |
Palinologia Paleoambiente Jurássico inferior Bacia Lusitaniana (Portugal) |
description |
ABSTRACT: This contribution is an overview of the Early Jurassic dinoflagellate cysts of the Lusitanian Basin in Portugal, with particular emphasis on the effects of the Jenkyns Event (Toarcian Oceanic Anoxic Event) on the evolution of this planktonic group. We review and discuss data from 214 samples from six Lower Jurassic successions (upper Sinemurian to upper Toarcian) in the Lusitanian Basin. The late Pliensbachian radiation of dinoflagellate cysts was well recognized in this basin. The pre-Jenkyns Event interval is highly productive, with maximum abundance and species richness values. However, this palaeoenvironmental perturbation severely affected the evolution of this group for the remainder of the Early Jurassic. The prolonged recovery of the dinoflagellates in the Toarcian following the Jenkyns Event is not typical of the northern regions (Arctic and Boreal realms), where new species began to evolve earlier compared with southern European basins. info:eu-repo/semantics/publishedVersion |
format |
Article in Journal/Newspaper |
author |
Correia, Vânia Riding, James Duarte, L. V. Fernandes, Paulo Pereira, Zélia |
author_facet |
Correia, Vânia Riding, James Duarte, L. V. Fernandes, Paulo Pereira, Zélia |
author_sort |
Correia, Vânia |
title |
The effects of the Jenkyns Event on the radiation of Early Jurassic dinoflagellate cysts |
title_short |
The effects of the Jenkyns Event on the radiation of Early Jurassic dinoflagellate cysts |
title_full |
The effects of the Jenkyns Event on the radiation of Early Jurassic dinoflagellate cysts |
title_fullStr |
The effects of the Jenkyns Event on the radiation of Early Jurassic dinoflagellate cysts |
title_full_unstemmed |
The effects of the Jenkyns Event on the radiation of Early Jurassic dinoflagellate cysts |
title_sort |
effects of the jenkyns event on the radiation of early jurassic dinoflagellate cysts |
publisher |
Geological Society of London |
publishDate |
2021 |
url |
http://hdl.handle.net/10400.9/3598 https://doi.org/10.1144/SP514-2020-255 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
UID/ MAR/00350/2020 SFRH/BD/93950/2013 https://doi.org/10.1144/SP514-2020-255 Correia, Vânia F. [et.al.] - The effects of the Jenkyns Event on the radiation of Early Jurassic dinoflagellate cysts, In: Geological Society, London, Special Publications, nº 514, 26 May 2021 0305-8719 http://hdl.handle.net/10400.9/3598 cv-prod-2535483 doi:10.1144/SP514-2020-255 |
op_rights |
openAccess http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1144/SP514-2020-255 |
container_title |
Geological Society, London, Special Publications |
container_volume |
514 |
container_issue |
1 |
container_start_page |
13 |
op_container_end_page |
30 |
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1766336408953290752 |