Palaeocope ostracods from the Silurian Wenlock Series of Arctic Canada
Silurian Wenlock Series deposits of the Cape Phillips Formation on Baillie-Hamilton Island and Cornwallis Island, Arctic Canada, have yielded a silicified ostracod assemblage that spans the late Sheinwoodian and Homerian stages. Sixteen palaeocope ostracod species are recorded, including the new spe...
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crcansciencepubl:10.1139/e10-010 2023-12-17T10:25:27+01:00 Palaeocope ostracods from the Silurian Wenlock Series of Arctic Canada Miller, C. Giles Williams, Mark Siveter, David J. Jin, Jisuo 2010 http://dx.doi.org/10.1139/e10-010 http://www.nrcresearchpress.com/doi/full-xml/10.1139/E10-010 http://www.nrcresearchpress.com/doi/pdf/10.1139/E10-010 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 47, issue 6, page 913-925 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 2010 crcansciencepubl https://doi.org/10.1139/e10-010 2023-11-19T13:38:38Z Silurian Wenlock Series deposits of the Cape Phillips Formation on Baillie-Hamilton Island and Cornwallis Island, Arctic Canada, have yielded a silicified ostracod assemblage that spans the late Sheinwoodian and Homerian stages. Sixteen palaeocope ostracod species are recorded, including the new species Beyrichia ( Beyrichia ) marssae , Gabrielsella ? copelandi , and Platybolbina ( Abruptobolbina ) adraini . The ostracod faunas can be linked into local trilobite, microvertebrate, and graptolite zonal schemes, and a few of the ostracod species offer potential for local and perhaps wider biostratigraphical correlation. The ostracods are mostly known only from the Cape Phillips Formation, but also include two taxa found in the Wenlock Series of the Avalanche Lake area, Northwest Territories, Canada. Other ostracod species suggest links with Silurian successions in northern Canada and the Baltic. Low-diversity ostracod faunas characterize the level of a marked positive carbon isotope excursion and coeval mid-Homerian regression at the level of the regional Pristiograptus dubius – Gothograptus nassa graptolite Biozone. Comparison with the pattern of distribution of coeval ostracod faunas elsewhere in Canada suggests that diversity changes in the Cape Phillips Formation ostracod faunas are controlled by local palaeoenvironmental factors perhaps linked to global sea-level change. Article in Journal/Newspaper Arctic Cornwallis Island Northwest Territories Canadian Science Publishing (via Crossref) Arctic Northwest Territories Canada Cornwallis ENVELOPE(-54.464,-54.464,-61.072,-61.072) Baillie ENVELOPE(-128.013,-128.013,70.561,70.561) Cape Phillips ENVELOPE(-62.600,-62.600,-84.750,-84.750) Avalanche Lake ENVELOPE(-127.235,-127.235,62.417,62.417) Baillie-Hamilton Island ENVELOPE(-94.584,-94.584,75.868,75.868) Cornwallis Island ENVELOPE(-95.001,-95.001,75.135,75.135) Canadian Journal of Earth Sciences 47 6 913 925 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Miller, C. Giles Williams, Mark Siveter, David J. Palaeocope ostracods from the Silurian Wenlock Series of Arctic Canada |
topic_facet |
General Earth and Planetary Sciences |
description |
Silurian Wenlock Series deposits of the Cape Phillips Formation on Baillie-Hamilton Island and Cornwallis Island, Arctic Canada, have yielded a silicified ostracod assemblage that spans the late Sheinwoodian and Homerian stages. Sixteen palaeocope ostracod species are recorded, including the new species Beyrichia ( Beyrichia ) marssae , Gabrielsella ? copelandi , and Platybolbina ( Abruptobolbina ) adraini . The ostracod faunas can be linked into local trilobite, microvertebrate, and graptolite zonal schemes, and a few of the ostracod species offer potential for local and perhaps wider biostratigraphical correlation. The ostracods are mostly known only from the Cape Phillips Formation, but also include two taxa found in the Wenlock Series of the Avalanche Lake area, Northwest Territories, Canada. Other ostracod species suggest links with Silurian successions in northern Canada and the Baltic. Low-diversity ostracod faunas characterize the level of a marked positive carbon isotope excursion and coeval mid-Homerian regression at the level of the regional Pristiograptus dubius – Gothograptus nassa graptolite Biozone. Comparison with the pattern of distribution of coeval ostracod faunas elsewhere in Canada suggests that diversity changes in the Cape Phillips Formation ostracod faunas are controlled by local palaeoenvironmental factors perhaps linked to global sea-level change. |
author2 |
Jin, Jisuo |
format |
Article in Journal/Newspaper |
author |
Miller, C. Giles Williams, Mark Siveter, David J. |
author_facet |
Miller, C. Giles Williams, Mark Siveter, David J. |
author_sort |
Miller, C. Giles |
title |
Palaeocope ostracods from the Silurian Wenlock Series of Arctic Canada |
title_short |
Palaeocope ostracods from the Silurian Wenlock Series of Arctic Canada |
title_full |
Palaeocope ostracods from the Silurian Wenlock Series of Arctic Canada |
title_fullStr |
Palaeocope ostracods from the Silurian Wenlock Series of Arctic Canada |
title_full_unstemmed |
Palaeocope ostracods from the Silurian Wenlock Series of Arctic Canada |
title_sort |
palaeocope ostracods from the silurian wenlock series of arctic canada |
publisher |
Canadian Science Publishing |
publishDate |
2010 |
url |
http://dx.doi.org/10.1139/e10-010 http://www.nrcresearchpress.com/doi/full-xml/10.1139/E10-010 http://www.nrcresearchpress.com/doi/pdf/10.1139/E10-010 |
long_lat |
ENVELOPE(-54.464,-54.464,-61.072,-61.072) ENVELOPE(-128.013,-128.013,70.561,70.561) ENVELOPE(-62.600,-62.600,-84.750,-84.750) ENVELOPE(-127.235,-127.235,62.417,62.417) ENVELOPE(-94.584,-94.584,75.868,75.868) ENVELOPE(-95.001,-95.001,75.135,75.135) |
geographic |
Arctic Northwest Territories Canada Cornwallis Baillie Cape Phillips Avalanche Lake Baillie-Hamilton Island Cornwallis Island |
geographic_facet |
Arctic Northwest Territories Canada Cornwallis Baillie Cape Phillips Avalanche Lake Baillie-Hamilton Island Cornwallis Island |
genre |
Arctic Cornwallis Island Northwest Territories |
genre_facet |
Arctic Cornwallis Island Northwest Territories |
op_source |
Canadian Journal of Earth Sciences volume 47, issue 6, page 913-925 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e10-010 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
47 |
container_issue |
6 |
container_start_page |
913 |
op_container_end_page |
925 |
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1785576847944187904 |