Biomineralization and global change. A new perspective for understanding the end-Permian extinction
We investigated the kill mechanisms of the end-Permian mass extinction by analyzing patterns in biomineralization of marine invertebrates. The microstructures of Upper Permian brachiopod organocarbonate shells show the demise of the production of fabrics with a columnar layer—which has less organic...
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Geological Society of America
2017
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Online Access: | https://hdl.handle.net/11573/1710561 https://doi.org/10.1130/G38430.1 |
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ftunivromairis:oai:iris.uniroma1.it:11573/1710561 2024-06-23T07:55:49+00:00 Biomineralization and global change. A new perspective for understanding the end-Permian extinction Claudio Garbelli Lucia Angiolini Shu-zhong Shen Garbelli, Claudio Angiolini, Lucia Shen, Shu-zhong 2017 https://hdl.handle.net/11573/1710561 https://doi.org/10.1130/G38430.1 eng eng Geological Society of America place:Boulder, CO volume:45 issue:1 firstpage:19 lastpage:22 numberofpages:4 journal:GEOLOGY https://hdl.handle.net/11573/1710561 doi:10.1130/G38430.1 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85008394027 info:eu-repo/semantics/closedAccess brachiopod shell microstructure end-Permian mass extinction ocean acidification info:eu-repo/semantics/article 2017 ftunivromairis https://doi.org/10.1130/G38430.1 2024-06-10T23:45:11Z We investigated the kill mechanisms of the end-Permian mass extinction by analyzing patterns in biomineralization of marine invertebrates. The microstructures of Upper Permian brachiopod organocarbonate shells show the demise of the production of fabrics with a columnar layer—which has less organic matrix—in favor of more organic-rich shells at the end of Permian. Also, in the 100–120 k.y. interval prior to the Permian-Triassic boundary (PTB), the Rhynchonellata had small calcite structural units (fibers) and thus a higher shell organic content, whereas the Strophomenata were not able to produce smaller units. This suggests that the two classes had a different capacity to cope with environmental change, with the Rhynchonellata being more able to buffer against pH changes and surviving the PTB, whereas the Strophomenata became extinct. The observed trends in biomineralization are similar to the patterns in extant marine invertebrates exposed to increasing pCO2 and decreasing pH, indicating that ocean acidification could have been one of the kill mechanisms of the mass extinction at the PTB. Article in Journal/Newspaper Ocean acidification Sapienza Università di Roma: CINECA IRIS Geology 45 1 19 22 |
institution |
Open Polar |
collection |
Sapienza Università di Roma: CINECA IRIS |
op_collection_id |
ftunivromairis |
language |
English |
topic |
brachiopod shell microstructure end-Permian mass extinction ocean acidification |
spellingShingle |
brachiopod shell microstructure end-Permian mass extinction ocean acidification Claudio Garbelli Lucia Angiolini Shu-zhong Shen Biomineralization and global change. A new perspective for understanding the end-Permian extinction |
topic_facet |
brachiopod shell microstructure end-Permian mass extinction ocean acidification |
description |
We investigated the kill mechanisms of the end-Permian mass extinction by analyzing patterns in biomineralization of marine invertebrates. The microstructures of Upper Permian brachiopod organocarbonate shells show the demise of the production of fabrics with a columnar layer—which has less organic matrix—in favor of more organic-rich shells at the end of Permian. Also, in the 100–120 k.y. interval prior to the Permian-Triassic boundary (PTB), the Rhynchonellata had small calcite structural units (fibers) and thus a higher shell organic content, whereas the Strophomenata were not able to produce smaller units. This suggests that the two classes had a different capacity to cope with environmental change, with the Rhynchonellata being more able to buffer against pH changes and surviving the PTB, whereas the Strophomenata became extinct. The observed trends in biomineralization are similar to the patterns in extant marine invertebrates exposed to increasing pCO2 and decreasing pH, indicating that ocean acidification could have been one of the kill mechanisms of the mass extinction at the PTB. |
author2 |
Garbelli, Claudio Angiolini, Lucia Shen, Shu-zhong |
format |
Article in Journal/Newspaper |
author |
Claudio Garbelli Lucia Angiolini Shu-zhong Shen |
author_facet |
Claudio Garbelli Lucia Angiolini Shu-zhong Shen |
author_sort |
Claudio Garbelli |
title |
Biomineralization and global change. A new perspective for understanding the end-Permian extinction |
title_short |
Biomineralization and global change. A new perspective for understanding the end-Permian extinction |
title_full |
Biomineralization and global change. A new perspective for understanding the end-Permian extinction |
title_fullStr |
Biomineralization and global change. A new perspective for understanding the end-Permian extinction |
title_full_unstemmed |
Biomineralization and global change. A new perspective for understanding the end-Permian extinction |
title_sort |
biomineralization and global change. a new perspective for understanding the end-permian extinction |
publisher |
Geological Society of America |
publishDate |
2017 |
url |
https://hdl.handle.net/11573/1710561 https://doi.org/10.1130/G38430.1 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
volume:45 issue:1 firstpage:19 lastpage:22 numberofpages:4 journal:GEOLOGY https://hdl.handle.net/11573/1710561 doi:10.1130/G38430.1 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85008394027 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1130/G38430.1 |
container_title |
Geology |
container_volume |
45 |
container_issue |
1 |
container_start_page |
19 |
op_container_end_page |
22 |
_version_ |
1802648535370301440 |