A silicified Early Triassic marine assemblage from Svalbard
Understanding how the marine biosphere recovered from the late Permian mass extinction event is a major evolutionary question. The quality of the global fossil record of this interval is, however, somewhat poor due to preservational, collection and sampling biases. Here we report a new earliest Indu...
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Online Access: | http://hdl.handle.net/10197/10921 https://doi.org/10.1080/14772019.2016.1245680 |
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ftunivcolldublin:oai:researchrepository.ucd.ie:10197/10921 2023-05-15T18:29:49+02:00 A silicified Early Triassic marine assemblage from Svalbard Foster, William J. Danise, Silvia Twitchett, Richard J. 2019-07-18T10:15:24Z http://hdl.handle.net/10197/10921 https://doi.org/10.1080/14772019.2016.1245680 en eng Taylor & FrancisNatural Environment Research Council (NERC) grant [NE/I005641] Journal of Systematic Palaeontology 1477-2019 http://hdl.handle.net/10197/10921 15 10 851 877 doi:10.1080/14772019.2016.1245680 NE/I005641 This is an Open Access article distributed under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. CC-BY Extinction Early Triassic Diversification Mollusca Protobranchia Chemosymbiosis Journal Article 2019 ftunivcolldublin https://doi.org/10.1080/14772019.2016.1245680 2022-04-08T14:19:33Z Understanding how the marine biosphere recovered from the late Permian mass extinction event is a major evolutionary question. The quality of the global fossil record of this interval is, however, somewhat poor due to preservational, collection and sampling biases. Here we report a new earliest Induan (Hindeodus parvus Zone) marine assemblage from the Deltadalen Member of the Vikinghøgda Formation, central Spitsbergen, which fills a critical gap in knowledge. The fully silicified fossils comprise the oldest silicified assemblage known from the Triassic and provide critical new systematic data. For its age, the assemblage is exceptionally diverse with 14 species of bivalves and gastropods, as well as conodonts and ammonoids. Four new bivalve species (Austrotindaria antiqua, A. svalbardensis, Nucinella taylori and N. nakremi) and one new gastropod species (Glabrocingulum parvum) are described, and five families are recorded in the Induan for the first time. Some of the common and globally widespread Early Triassic taxa, such as Unionites, are also present, and their exceptional preservation reveals key morphological characters that are documented for the first time. Taxonomic and ecological revisions based on these new data suggest that shallow-infaunal deposit-feeders were a dominant component of pre-Spathian benthic communities. The gastropods and bivalves all possessed a planktotrophic larval stage, which may have been a particular advantage in the wake of the late Permian mass extinction. Natural Environment Research Council (NERC) Article in Journal/Newspaper Svalbard Spitsbergen University College Dublin: Research Repository UCD Deltadalen ENVELOPE(16.900,16.900,78.267,78.267) Svalbard Vikinghøgda ENVELOPE(23.167,23.167,-72.067,-72.067) Journal of Systematic Palaeontology 15 10 851 877 |
institution |
Open Polar |
collection |
University College Dublin: Research Repository UCD |
op_collection_id |
ftunivcolldublin |
language |
English |
topic |
Extinction Early Triassic Diversification Mollusca Protobranchia Chemosymbiosis |
spellingShingle |
Extinction Early Triassic Diversification Mollusca Protobranchia Chemosymbiosis Foster, William J. Danise, Silvia Twitchett, Richard J. A silicified Early Triassic marine assemblage from Svalbard |
topic_facet |
Extinction Early Triassic Diversification Mollusca Protobranchia Chemosymbiosis |
description |
Understanding how the marine biosphere recovered from the late Permian mass extinction event is a major evolutionary question. The quality of the global fossil record of this interval is, however, somewhat poor due to preservational, collection and sampling biases. Here we report a new earliest Induan (Hindeodus parvus Zone) marine assemblage from the Deltadalen Member of the Vikinghøgda Formation, central Spitsbergen, which fills a critical gap in knowledge. The fully silicified fossils comprise the oldest silicified assemblage known from the Triassic and provide critical new systematic data. For its age, the assemblage is exceptionally diverse with 14 species of bivalves and gastropods, as well as conodonts and ammonoids. Four new bivalve species (Austrotindaria antiqua, A. svalbardensis, Nucinella taylori and N. nakremi) and one new gastropod species (Glabrocingulum parvum) are described, and five families are recorded in the Induan for the first time. Some of the common and globally widespread Early Triassic taxa, such as Unionites, are also present, and their exceptional preservation reveals key morphological characters that are documented for the first time. Taxonomic and ecological revisions based on these new data suggest that shallow-infaunal deposit-feeders were a dominant component of pre-Spathian benthic communities. The gastropods and bivalves all possessed a planktotrophic larval stage, which may have been a particular advantage in the wake of the late Permian mass extinction. Natural Environment Research Council (NERC) |
format |
Article in Journal/Newspaper |
author |
Foster, William J. Danise, Silvia Twitchett, Richard J. |
author_facet |
Foster, William J. Danise, Silvia Twitchett, Richard J. |
author_sort |
Foster, William J. |
title |
A silicified Early Triassic marine assemblage from Svalbard |
title_short |
A silicified Early Triassic marine assemblage from Svalbard |
title_full |
A silicified Early Triassic marine assemblage from Svalbard |
title_fullStr |
A silicified Early Triassic marine assemblage from Svalbard |
title_full_unstemmed |
A silicified Early Triassic marine assemblage from Svalbard |
title_sort |
silicified early triassic marine assemblage from svalbard |
publisher |
Taylor & FrancisNatural Environment Research Council (NERC) grant [NE/I005641] |
publishDate |
2019 |
url |
http://hdl.handle.net/10197/10921 https://doi.org/10.1080/14772019.2016.1245680 |
long_lat |
ENVELOPE(16.900,16.900,78.267,78.267) ENVELOPE(23.167,23.167,-72.067,-72.067) |
geographic |
Deltadalen Svalbard Vikinghøgda |
geographic_facet |
Deltadalen Svalbard Vikinghøgda |
genre |
Svalbard Spitsbergen |
genre_facet |
Svalbard Spitsbergen |
op_relation |
Journal of Systematic Palaeontology 1477-2019 http://hdl.handle.net/10197/10921 15 10 851 877 doi:10.1080/14772019.2016.1245680 NE/I005641 |
op_rights |
This is an Open Access article distributed under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1080/14772019.2016.1245680 |
container_title |
Journal of Systematic Palaeontology |
container_volume |
15 |
container_issue |
10 |
container_start_page |
851 |
op_container_end_page |
877 |
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1766213223299678208 |