Hettangian (Lower Jurassic) rocks and faunas, northern Yukon Territory
The Lower Jurassic Hettangian Stage is documented with certainty for the first time in the Canadian Arctic. It is represented by a basal Jurassic sandstone unit in the Bonnet Lake area of northern Yukon Territory. The two subzones of the Early Hettangian Planorbis Zone, i.e., the Planorbis Subzone a...
Published in: | Canadian Journal of Earth Sciences |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Canadian Science Publishing
1977
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Online Access: | http://dx.doi.org/10.1139/e77-010 http://www.nrcresearchpress.com/doi/pdf/10.1139/e77-010 |
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crcansciencepubl:10.1139/e77-010 2023-12-17T10:26:03+01:00 Hettangian (Lower Jurassic) rocks and faunas, northern Yukon Territory Frebold, Hans Poulton, T. P. 1977 http://dx.doi.org/10.1139/e77-010 http://www.nrcresearchpress.com/doi/pdf/10.1139/e77-010 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 14, issue 1, page 89-101 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1977 crcansciencepubl https://doi.org/10.1139/e77-010 2023-11-19T13:39:01Z The Lower Jurassic Hettangian Stage is documented with certainty for the first time in the Canadian Arctic. It is represented by a basal Jurassic sandstone unit in the Bonnet Lake area of northern Yukon Territory. The two subzones of the Early Hettangian Planorbis Zone, i.e., the Planorbis Subzone and the Johnstoni Subzone, are indicated by poorly preserved Psiloceras sp. indet. and Psiloceras (Caloceras) cf. P. (C.) johnstoni (J. de C. Sowerby), respectively. The varied but poorly preserved bivalve fauna associated with P. (C.) cf. P. (C.) johnstoni includes Prosogyrotrigonia (?) sp. cf. P. inouyei (Yehara), Cardinia sp. cf. C. hybrida (J. Sowerby), C. sp. aff. C. concinna (J. Sowerby), Pleuromya (?) sp., Meleagrinella (?) sp., Oxytoma (Oxytoma) sp., and Parallelodon (?) sp. The bivalves closely resemble approximately coeval forms described from Japan. The above-mentioned faunas are figured as is a specimen of Psiloceras cf. P. erugatum (Phillips), which was previously described from the Hettangian of southern Yukon. Other occurrences of the Hettangian in Canada and Alaska are reviewed. Article in Journal/Newspaper Arctic Alaska Yukon Canadian Science Publishing (via Crossref) Arctic Yukon Canada Bonnet Lake ENVELOPE(-137.886,-137.886,68.188,68.188) Canadian Journal of Earth Sciences 14 1 89 101 |
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 Frebold, Hans Poulton, T. P. Hettangian (Lower Jurassic) rocks and faunas, northern Yukon Territory |
topic_facet |
General Earth and Planetary Sciences |
description |
The Lower Jurassic Hettangian Stage is documented with certainty for the first time in the Canadian Arctic. It is represented by a basal Jurassic sandstone unit in the Bonnet Lake area of northern Yukon Territory. The two subzones of the Early Hettangian Planorbis Zone, i.e., the Planorbis Subzone and the Johnstoni Subzone, are indicated by poorly preserved Psiloceras sp. indet. and Psiloceras (Caloceras) cf. P. (C.) johnstoni (J. de C. Sowerby), respectively. The varied but poorly preserved bivalve fauna associated with P. (C.) cf. P. (C.) johnstoni includes Prosogyrotrigonia (?) sp. cf. P. inouyei (Yehara), Cardinia sp. cf. C. hybrida (J. Sowerby), C. sp. aff. C. concinna (J. Sowerby), Pleuromya (?) sp., Meleagrinella (?) sp., Oxytoma (Oxytoma) sp., and Parallelodon (?) sp. The bivalves closely resemble approximately coeval forms described from Japan. The above-mentioned faunas are figured as is a specimen of Psiloceras cf. P. erugatum (Phillips), which was previously described from the Hettangian of southern Yukon. Other occurrences of the Hettangian in Canada and Alaska are reviewed. |
format |
Article in Journal/Newspaper |
author |
Frebold, Hans Poulton, T. P. |
author_facet |
Frebold, Hans Poulton, T. P. |
author_sort |
Frebold, Hans |
title |
Hettangian (Lower Jurassic) rocks and faunas, northern Yukon Territory |
title_short |
Hettangian (Lower Jurassic) rocks and faunas, northern Yukon Territory |
title_full |
Hettangian (Lower Jurassic) rocks and faunas, northern Yukon Territory |
title_fullStr |
Hettangian (Lower Jurassic) rocks and faunas, northern Yukon Territory |
title_full_unstemmed |
Hettangian (Lower Jurassic) rocks and faunas, northern Yukon Territory |
title_sort |
hettangian (lower jurassic) rocks and faunas, northern yukon territory |
publisher |
Canadian Science Publishing |
publishDate |
1977 |
url |
http://dx.doi.org/10.1139/e77-010 http://www.nrcresearchpress.com/doi/pdf/10.1139/e77-010 |
long_lat |
ENVELOPE(-137.886,-137.886,68.188,68.188) |
geographic |
Arctic Yukon Canada Bonnet Lake |
geographic_facet |
Arctic Yukon Canada Bonnet Lake |
genre |
Arctic Alaska Yukon |
genre_facet |
Arctic Alaska Yukon |
op_source |
Canadian Journal of Earth Sciences volume 14, issue 1, page 89-101 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e77-010 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
14 |
container_issue |
1 |
container_start_page |
89 |
op_container_end_page |
101 |
_version_ |
1785577743896805376 |