A rich Ediacaran assemblage from eastern Avalonia : evidence of early widespread diversity in the deep ocean
The Avalon Assemblage (Ediacaran, late Neoproterozoic) provides some of the oldest evidence of diverse macroscopic life and underpins current understanding of the early evolution of epibenthic communities. However, its overall diversity and provincial variability are poorly constrained and are based...
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Geological Society of America
2011
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ftnerc:oai:nora.nerc.ac.uk:14533 2023-05-15T17:20:44+02:00 A rich Ediacaran assemblage from eastern Avalonia : evidence of early widespread diversity in the deep ocean Wilby, Philip R. Carney, John N. Howe, Michael P.A. 2011 text http://nora.nerc.ac.uk/id/eprint/14533/ https://nora.nerc.ac.uk/id/eprint/14533/1/G31890-Wilby-edited1.pdf http://geology.geoscienceworld.org/content/vol39/issue7/ en eng Geological Society of America https://nora.nerc.ac.uk/id/eprint/14533/1/G31890-Wilby-edited1.pdf Wilby, Philip R.; Carney, John N.; Howe, Michael P.A. 2011 A rich Ediacaran assemblage from eastern Avalonia : evidence of early widespread diversity in the deep ocean. Geology, 39 (7). 655-658. https://doi.org/10.1130/G31890.1 <https://doi.org/10.1130/G31890.1> Publication - Article PeerReviewed 2011 ftnerc https://doi.org/10.1130/G31890.1 2023-02-04T19:29:18Z The Avalon Assemblage (Ediacaran, late Neoproterozoic) provides some of the oldest evidence of diverse macroscopic life and underpins current understanding of the early evolution of epibenthic communities. However, its overall diversity and provincial variability are poorly constrained and are based largely on biotas preserved in Newfoundland, Canada. We report coeval high-diversity biotas from Charnwood Forest, UK, which share at least 60% of their genera in common with ones in Newfoundland. This indicates that substantial taxonomic exchange took place between different regions of Avalonia, probably facilitated by ocean currents, and suggests that a diverse deepwater biota may already have been widespread at the time. Contrasts in the relative abundance of prostrate versus erect taxa likely record differential sensitivity to physical environmental parameters (hydrodynamic regime, substrate) and highlight their significance in controlling community structure. Article in Journal/Newspaper Newfoundland Natural Environment Research Council: NERC Open Research Archive Canada Geology 39 7 655 658 |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
language |
English |
description |
The Avalon Assemblage (Ediacaran, late Neoproterozoic) provides some of the oldest evidence of diverse macroscopic life and underpins current understanding of the early evolution of epibenthic communities. However, its overall diversity and provincial variability are poorly constrained and are based largely on biotas preserved in Newfoundland, Canada. We report coeval high-diversity biotas from Charnwood Forest, UK, which share at least 60% of their genera in common with ones in Newfoundland. This indicates that substantial taxonomic exchange took place between different regions of Avalonia, probably facilitated by ocean currents, and suggests that a diverse deepwater biota may already have been widespread at the time. Contrasts in the relative abundance of prostrate versus erect taxa likely record differential sensitivity to physical environmental parameters (hydrodynamic regime, substrate) and highlight their significance in controlling community structure. |
format |
Article in Journal/Newspaper |
author |
Wilby, Philip R. Carney, John N. Howe, Michael P.A. |
spellingShingle |
Wilby, Philip R. Carney, John N. Howe, Michael P.A. A rich Ediacaran assemblage from eastern Avalonia : evidence of early widespread diversity in the deep ocean |
author_facet |
Wilby, Philip R. Carney, John N. Howe, Michael P.A. |
author_sort |
Wilby, Philip R. |
title |
A rich Ediacaran assemblage from eastern Avalonia : evidence of early widespread diversity in the deep ocean |
title_short |
A rich Ediacaran assemblage from eastern Avalonia : evidence of early widespread diversity in the deep ocean |
title_full |
A rich Ediacaran assemblage from eastern Avalonia : evidence of early widespread diversity in the deep ocean |
title_fullStr |
A rich Ediacaran assemblage from eastern Avalonia : evidence of early widespread diversity in the deep ocean |
title_full_unstemmed |
A rich Ediacaran assemblage from eastern Avalonia : evidence of early widespread diversity in the deep ocean |
title_sort |
rich ediacaran assemblage from eastern avalonia : evidence of early widespread diversity in the deep ocean |
publisher |
Geological Society of America |
publishDate |
2011 |
url |
http://nora.nerc.ac.uk/id/eprint/14533/ https://nora.nerc.ac.uk/id/eprint/14533/1/G31890-Wilby-edited1.pdf http://geology.geoscienceworld.org/content/vol39/issue7/ |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_relation |
https://nora.nerc.ac.uk/id/eprint/14533/1/G31890-Wilby-edited1.pdf Wilby, Philip R.; Carney, John N.; Howe, Michael P.A. 2011 A rich Ediacaran assemblage from eastern Avalonia : evidence of early widespread diversity in the deep ocean. Geology, 39 (7). 655-658. https://doi.org/10.1130/G31890.1 <https://doi.org/10.1130/G31890.1> |
op_doi |
https://doi.org/10.1130/G31890.1 |
container_title |
Geology |
container_volume |
39 |
container_issue |
7 |
container_start_page |
655 |
op_container_end_page |
658 |
_version_ |
1766101861834686464 |