Llandovery graptolite biostratigraphy and paleobiogeography, Cape Phillips Formation, Canadian Arctic Islands
Llandovery graptolites have been collected from 11 sections in the Cape Phillips Formation of the Canadian Arctic Archipelago: Melville, Bathurst, Truro, Cornwallis, Devon, and Ellesmere islands. The Cape Phillips Formation appears to have been deposited in a distinct subbasin, here termed the Cape...
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1989
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Online Access: | http://dx.doi.org/10.1139/e89-147 http://www.nrcresearchpress.com/doi/pdf/10.1139/e89-147 |
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crcansciencepubl:10.1139/e89-147 2024-09-15T17:52:11+00:00 Llandovery graptolite biostratigraphy and paleobiogeography, Cape Phillips Formation, Canadian Arctic Islands Melchin, Michael J. 1989 http://dx.doi.org/10.1139/e89-147 http://www.nrcresearchpress.com/doi/pdf/10.1139/e89-147 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 26, issue 9, page 1726-1746 ISSN 0008-4077 1480-3313 journal-article 1989 crcansciencepubl https://doi.org/10.1139/e89-147 2024-07-25T04:10:08Z Llandovery graptolites have been collected from 11 sections in the Cape Phillips Formation of the Canadian Arctic Archipelago: Melville, Bathurst, Truro, Cornwallis, Devon, and Ellesmere islands. The Cape Phillips Formation appears to have been deposited in a distinct subbasin, here termed the Cape Phillips Basin, under deep-shelf to shallow-basin conditions intermediate in position between the Arctic Platform to the south and east and the deeper Hazen Trough to the northwest.A total of 170 graptolite species and a further 25 subspecies have been identified. Their stratigraphic distribution allows the recognition of 11 graptolite zones: the acuminatus, atavus, acinaces, cyphus, curtus, convolutus, minor, turriculatus, crispus, griestoniensis, and sakmaricus zones. The curtus Zone can be subdivided into the pectinatus and orbitus subzones. The zones can be correlated with graptolite sequences worldwide.The Canadian Arctic faunas show strong affinities with those of Siberia, China, and the northern Canadian Cordillera. It may be possible to recognize a circum-equatorial faunal province in northern North America, Siberia, and China based on the occurrence of distinctive forms including Agetograptus and "Paramonoclimacis" in the middle Llandovery and certain Cyrtograptus species (especially C. sakmaricus) in the upper Llandovery. Article in Journal/Newspaper Arctic Archipelago Canadian Arctic Archipelago Siberia Canadian Science Publishing Canadian Journal of Earth Sciences 26 9 1726 1746 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Llandovery graptolites have been collected from 11 sections in the Cape Phillips Formation of the Canadian Arctic Archipelago: Melville, Bathurst, Truro, Cornwallis, Devon, and Ellesmere islands. The Cape Phillips Formation appears to have been deposited in a distinct subbasin, here termed the Cape Phillips Basin, under deep-shelf to shallow-basin conditions intermediate in position between the Arctic Platform to the south and east and the deeper Hazen Trough to the northwest.A total of 170 graptolite species and a further 25 subspecies have been identified. Their stratigraphic distribution allows the recognition of 11 graptolite zones: the acuminatus, atavus, acinaces, cyphus, curtus, convolutus, minor, turriculatus, crispus, griestoniensis, and sakmaricus zones. The curtus Zone can be subdivided into the pectinatus and orbitus subzones. The zones can be correlated with graptolite sequences worldwide.The Canadian Arctic faunas show strong affinities with those of Siberia, China, and the northern Canadian Cordillera. It may be possible to recognize a circum-equatorial faunal province in northern North America, Siberia, and China based on the occurrence of distinctive forms including Agetograptus and "Paramonoclimacis" in the middle Llandovery and certain Cyrtograptus species (especially C. sakmaricus) in the upper Llandovery. |
format |
Article in Journal/Newspaper |
author |
Melchin, Michael J. |
spellingShingle |
Melchin, Michael J. Llandovery graptolite biostratigraphy and paleobiogeography, Cape Phillips Formation, Canadian Arctic Islands |
author_facet |
Melchin, Michael J. |
author_sort |
Melchin, Michael J. |
title |
Llandovery graptolite biostratigraphy and paleobiogeography, Cape Phillips Formation, Canadian Arctic Islands |
title_short |
Llandovery graptolite biostratigraphy and paleobiogeography, Cape Phillips Formation, Canadian Arctic Islands |
title_full |
Llandovery graptolite biostratigraphy and paleobiogeography, Cape Phillips Formation, Canadian Arctic Islands |
title_fullStr |
Llandovery graptolite biostratigraphy and paleobiogeography, Cape Phillips Formation, Canadian Arctic Islands |
title_full_unstemmed |
Llandovery graptolite biostratigraphy and paleobiogeography, Cape Phillips Formation, Canadian Arctic Islands |
title_sort |
llandovery graptolite biostratigraphy and paleobiogeography, cape phillips formation, canadian arctic islands |
publisher |
Canadian Science Publishing |
publishDate |
1989 |
url |
http://dx.doi.org/10.1139/e89-147 http://www.nrcresearchpress.com/doi/pdf/10.1139/e89-147 |
genre |
Arctic Archipelago Canadian Arctic Archipelago Siberia |
genre_facet |
Arctic Archipelago Canadian Arctic Archipelago Siberia |
op_source |
Canadian Journal of Earth Sciences volume 26, issue 9, page 1726-1746 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e89-147 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
26 |
container_issue |
9 |
container_start_page |
1726 |
op_container_end_page |
1746 |
_version_ |
1810294265817858048 |