First evidence of walrus ( Odobenus rosmarus L.) in Late Pleistocene Champlain Sea sediments, Quebec
The almost complete skull of a walrus has been discovered in Champlain Sea sediments at Sainte-Julienne-de-Montcalm, 60 km north of Montréal. It is the first report of that species in glacial marine deposits west of Québec City. The skull has been dated by accelerator mass spectrometry at 10 090 ± 6...
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Language: | French |
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1993
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Online Access: | http://dx.doi.org/10.1139/e93-150 http://www.nrcresearchpress.com/doi/pdf/10.1139/e93-150 |
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crcansciencepubl:10.1139/e93-150 2023-12-17T10:48:08+01:00 First evidence of walrus ( Odobenus rosmarus L.) in Late Pleistocene Champlain Sea sediments, Quebec Bouchard, M. A. Harington, C. R. Guilbault, J. -P. 1993 http://dx.doi.org/10.1139/e93-150 http://www.nrcresearchpress.com/doi/pdf/10.1139/e93-150 fr fre Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 30, issue 8, page 1715-1719 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1993 crcansciencepubl https://doi.org/10.1139/e93-150 2023-11-19T13:39:20Z The almost complete skull of a walrus has been discovered in Champlain Sea sediments at Sainte-Julienne-de-Montcalm, 60 km north of Montréal. It is the first report of that species in glacial marine deposits west of Québec City. The skull has been dated by accelerator mass spectrometry at 10 090 ± 60 BP (TO-2224) and the shells in the sediment adhering to it at 10 880 ± 60 BP (TO-2225). The discrepancy between the two age determinations is attributed to diachronism between the skull and the shells, the latter having been redeposited. The radiometric age implies that walruses were part of a Champlain Sea marine vertebrate fauna consisting of three species of seals and five whale species. As the sea drained, walruses withdrew toward the Gulf of St. Lawrence, where they have been hunted to extinction in historic times. Article in Journal/Newspaper Odobenus rosmarus walrus* Canadian Science Publishing (via Crossref) Canadian Journal of Earth Sciences 30 8 1715 1719 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
French |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Bouchard, M. A. Harington, C. R. Guilbault, J. -P. First evidence of walrus ( Odobenus rosmarus L.) in Late Pleistocene Champlain Sea sediments, Quebec |
topic_facet |
General Earth and Planetary Sciences |
description |
The almost complete skull of a walrus has been discovered in Champlain Sea sediments at Sainte-Julienne-de-Montcalm, 60 km north of Montréal. It is the first report of that species in glacial marine deposits west of Québec City. The skull has been dated by accelerator mass spectrometry at 10 090 ± 60 BP (TO-2224) and the shells in the sediment adhering to it at 10 880 ± 60 BP (TO-2225). The discrepancy between the two age determinations is attributed to diachronism between the skull and the shells, the latter having been redeposited. The radiometric age implies that walruses were part of a Champlain Sea marine vertebrate fauna consisting of three species of seals and five whale species. As the sea drained, walruses withdrew toward the Gulf of St. Lawrence, where they have been hunted to extinction in historic times. |
format |
Article in Journal/Newspaper |
author |
Bouchard, M. A. Harington, C. R. Guilbault, J. -P. |
author_facet |
Bouchard, M. A. Harington, C. R. Guilbault, J. -P. |
author_sort |
Bouchard, M. A. |
title |
First evidence of walrus ( Odobenus rosmarus L.) in Late Pleistocene Champlain Sea sediments, Quebec |
title_short |
First evidence of walrus ( Odobenus rosmarus L.) in Late Pleistocene Champlain Sea sediments, Quebec |
title_full |
First evidence of walrus ( Odobenus rosmarus L.) in Late Pleistocene Champlain Sea sediments, Quebec |
title_fullStr |
First evidence of walrus ( Odobenus rosmarus L.) in Late Pleistocene Champlain Sea sediments, Quebec |
title_full_unstemmed |
First evidence of walrus ( Odobenus rosmarus L.) in Late Pleistocene Champlain Sea sediments, Quebec |
title_sort |
first evidence of walrus ( odobenus rosmarus l.) in late pleistocene champlain sea sediments, quebec |
publisher |
Canadian Science Publishing |
publishDate |
1993 |
url |
http://dx.doi.org/10.1139/e93-150 http://www.nrcresearchpress.com/doi/pdf/10.1139/e93-150 |
genre |
Odobenus rosmarus walrus* |
genre_facet |
Odobenus rosmarus walrus* |
op_source |
Canadian Journal of Earth Sciences volume 30, issue 8, page 1715-1719 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e93-150 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
30 |
container_issue |
8 |
container_start_page |
1715 |
op_container_end_page |
1719 |
_version_ |
1785572235912675328 |