Warm afterglow from the Toarcian Oceanic Anoxic Event drives the success of deep-adapted brachiopods
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/106698 https://doi.org/10.1038/s41598-020-63487-6 |
Resumo: | Many aspects of the supposed hyperthermal Toarcian Oceanic Anoxic Event (T-OAE, Early Jurassic, c. 182 Ma) are well understood but a lack of robust palaeotemperature data severely limits reconstruction of the processes that drove the T-OAE and associated environmental and biotic changes. New oxygen isotope data from calcite shells of the benthic fauna suggest that bottom water temperatures in the western Tethys were elevated by c. 3.5 °C through the entire T-OAE. Modelling supports the idea that widespread marine anoxia was induced by a greenhouse-driven weathering pulse, and is compatible with the OAE duration being extended by limitation of the global silicate weathering flux. In the western Tethys Ocean, the later part of the T-OAE is characterized by abundant occurrences of the brachiopod Soaresirhynchia, which exhibits characteristics of slow-growing, deep sea brachiopods. The unlikely success of Soaresirhynchia in a hyperthermal event is attributed here to low metabolic rate, which put it at an advantage over other species from shallow epicontinental environments with higher metabolic demand. |
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Warm afterglow from the Toarcian Oceanic Anoxic Event drives the success of deep-adapted brachiopodsAnimalsCarbon CycleCarbon IsotopesGeographyHypoxiaInvertebratesModels, TheoreticalOxygen IsotopesPaleontologyAdaptation, PhysiologicalOceans and SeasTemperatureMany aspects of the supposed hyperthermal Toarcian Oceanic Anoxic Event (T-OAE, Early Jurassic, c. 182 Ma) are well understood but a lack of robust palaeotemperature data severely limits reconstruction of the processes that drove the T-OAE and associated environmental and biotic changes. New oxygen isotope data from calcite shells of the benthic fauna suggest that bottom water temperatures in the western Tethys were elevated by c. 3.5 °C through the entire T-OAE. Modelling supports the idea that widespread marine anoxia was induced by a greenhouse-driven weathering pulse, and is compatible with the OAE duration being extended by limitation of the global silicate weathering flux. In the western Tethys Ocean, the later part of the T-OAE is characterized by abundant occurrences of the brachiopod Soaresirhynchia, which exhibits characteristics of slow-growing, deep sea brachiopods. The unlikely success of Soaresirhynchia in a hyperthermal event is attributed here to low metabolic rate, which put it at an advantage over other species from shallow epicontinental environments with higher metabolic demand.Springer Nature2020-04-16info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/106698http://hdl.handle.net/10316/106698https://doi.org/10.1038/s41598-020-63487-6eng2045-2322Ullmann, C. V.Boyle, R.Duarte, Luís V.Hesselbo, Stephen P.Kasemann, S. A.Klein, T.Lenton, T. M.Piazza, V.Aberhan, M.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-04-17T11:32:41ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Warm afterglow from the Toarcian Oceanic Anoxic Event drives the success of deep-adapted brachiopods |
title |
Warm afterglow from the Toarcian Oceanic Anoxic Event drives the success of deep-adapted brachiopods |
spellingShingle |
Warm afterglow from the Toarcian Oceanic Anoxic Event drives the success of deep-adapted brachiopods Ullmann, C. V. Animals Carbon Cycle Carbon Isotopes Geography Hypoxia Invertebrates Models, Theoretical Oxygen Isotopes Paleontology Adaptation, Physiological Oceans and Seas Temperature |
title_short |
Warm afterglow from the Toarcian Oceanic Anoxic Event drives the success of deep-adapted brachiopods |
title_full |
Warm afterglow from the Toarcian Oceanic Anoxic Event drives the success of deep-adapted brachiopods |
title_fullStr |
Warm afterglow from the Toarcian Oceanic Anoxic Event drives the success of deep-adapted brachiopods |
title_full_unstemmed |
Warm afterglow from the Toarcian Oceanic Anoxic Event drives the success of deep-adapted brachiopods |
title_sort |
Warm afterglow from the Toarcian Oceanic Anoxic Event drives the success of deep-adapted brachiopods |
author |
Ullmann, C. V. |
author_facet |
Ullmann, C. V. Boyle, R. Duarte, Luís V. Hesselbo, Stephen P. Kasemann, S. A. Klein, T. Lenton, T. M. Piazza, V. Aberhan, M. |
author_role |
author |
author2 |
Boyle, R. Duarte, Luís V. Hesselbo, Stephen P. Kasemann, S. A. Klein, T. Lenton, T. M. Piazza, V. Aberhan, M. |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Ullmann, C. V. Boyle, R. Duarte, Luís V. Hesselbo, Stephen P. Kasemann, S. A. Klein, T. Lenton, T. M. Piazza, V. Aberhan, M. |
dc.subject.por.fl_str_mv |
Animals Carbon Cycle Carbon Isotopes Geography Hypoxia Invertebrates Models, Theoretical Oxygen Isotopes Paleontology Adaptation, Physiological Oceans and Seas Temperature |
topic |
Animals Carbon Cycle Carbon Isotopes Geography Hypoxia Invertebrates Models, Theoretical Oxygen Isotopes Paleontology Adaptation, Physiological Oceans and Seas Temperature |
description |
Many aspects of the supposed hyperthermal Toarcian Oceanic Anoxic Event (T-OAE, Early Jurassic, c. 182 Ma) are well understood but a lack of robust palaeotemperature data severely limits reconstruction of the processes that drove the T-OAE and associated environmental and biotic changes. New oxygen isotope data from calcite shells of the benthic fauna suggest that bottom water temperatures in the western Tethys were elevated by c. 3.5 °C through the entire T-OAE. Modelling supports the idea that widespread marine anoxia was induced by a greenhouse-driven weathering pulse, and is compatible with the OAE duration being extended by limitation of the global silicate weathering flux. In the western Tethys Ocean, the later part of the T-OAE is characterized by abundant occurrences of the brachiopod Soaresirhynchia, which exhibits characteristics of slow-growing, deep sea brachiopods. The unlikely success of Soaresirhynchia in a hyperthermal event is attributed here to low metabolic rate, which put it at an advantage over other species from shallow epicontinental environments with higher metabolic demand. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-04-16 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/106698 http://hdl.handle.net/10316/106698 https://doi.org/10.1038/s41598-020-63487-6 |
url |
http://hdl.handle.net/10316/106698 https://doi.org/10.1038/s41598-020-63487-6 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2045-2322 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Springer Nature |
publisher.none.fl_str_mv |
Springer Nature |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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