Boreameryx , an unusual new artiodactyl (Mammalia) from the Pliocene of Arctic Canada and endemism in Arctic fossil mammals
Boreameryx braskerudi, gen. et sp. nov., from Early Pliocene (about 5–4 Ma) deposits of Ellesmere Island, Nunavut, is represented by the posterior portion of a dentary with three molars, a partial calcaneum, unciform, and fragments of long bones and ribs. The incompletely known structure of Boreamer...
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2007
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Online Access: | http://dx.doi.org/10.1139/e06-111 http://www.nrcresearchpress.com/doi/pdf/10.1139/e06-111 |
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crcansciencepubl:10.1139/e06-111 2023-12-17T10:25:15+01:00 Boreameryx , an unusual new artiodactyl (Mammalia) from the Pliocene of Arctic Canada and endemism in Arctic fossil mammals Dawson, Mary R Harington, C R 2007 http://dx.doi.org/10.1139/e06-111 http://www.nrcresearchpress.com/doi/pdf/10.1139/e06-111 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 44, issue 5, page 585-592 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 2007 crcansciencepubl https://doi.org/10.1139/e06-111 2023-11-19T13:38:57Z Boreameryx braskerudi, gen. et sp. nov., from Early Pliocene (about 5–4 Ma) deposits of Ellesmere Island, Nunavut, is represented by the posterior portion of a dentary with three molars, a partial calcaneum, unciform, and fragments of long bones and ribs. The incompletely known structure of Boreameryx must leave open the questions of its relationships within the pecoran ruminants. Even its possible affinities with early cervoids and the North American blastomerycines are speculative. We favour the tentative association of Boreameryx within the Cervoidea. Rather than evolving hypsodonty to deal with abrasive northern foods, Boreameryx apparently retained plesiomorphic dental structures—even augmenting those structures in a unique morphological development. We hypothesize, based on recorded relationships and ranges (both geological and geographical) of several Beaver Pond site mammals, including Boreameryx, that they indicate a significant interval of endemic development in a high northern biotic province prior to 5 Ma. Article in Journal/Newspaper Arctic Ellesmere Island Nunavut Canadian Science Publishing (via Crossref) Arctic Nunavut Ellesmere Island Canada Beaver Pond ENVELOPE(-56.848,-56.848,49.600,49.600) Canadian Journal of Earth Sciences 44 5 585 592 |
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 Dawson, Mary R Harington, C R Boreameryx , an unusual new artiodactyl (Mammalia) from the Pliocene of Arctic Canada and endemism in Arctic fossil mammals |
topic_facet |
General Earth and Planetary Sciences |
description |
Boreameryx braskerudi, gen. et sp. nov., from Early Pliocene (about 5–4 Ma) deposits of Ellesmere Island, Nunavut, is represented by the posterior portion of a dentary with three molars, a partial calcaneum, unciform, and fragments of long bones and ribs. The incompletely known structure of Boreameryx must leave open the questions of its relationships within the pecoran ruminants. Even its possible affinities with early cervoids and the North American blastomerycines are speculative. We favour the tentative association of Boreameryx within the Cervoidea. Rather than evolving hypsodonty to deal with abrasive northern foods, Boreameryx apparently retained plesiomorphic dental structures—even augmenting those structures in a unique morphological development. We hypothesize, based on recorded relationships and ranges (both geological and geographical) of several Beaver Pond site mammals, including Boreameryx, that they indicate a significant interval of endemic development in a high northern biotic province prior to 5 Ma. |
format |
Article in Journal/Newspaper |
author |
Dawson, Mary R Harington, C R |
author_facet |
Dawson, Mary R Harington, C R |
author_sort |
Dawson, Mary R |
title |
Boreameryx , an unusual new artiodactyl (Mammalia) from the Pliocene of Arctic Canada and endemism in Arctic fossil mammals |
title_short |
Boreameryx , an unusual new artiodactyl (Mammalia) from the Pliocene of Arctic Canada and endemism in Arctic fossil mammals |
title_full |
Boreameryx , an unusual new artiodactyl (Mammalia) from the Pliocene of Arctic Canada and endemism in Arctic fossil mammals |
title_fullStr |
Boreameryx , an unusual new artiodactyl (Mammalia) from the Pliocene of Arctic Canada and endemism in Arctic fossil mammals |
title_full_unstemmed |
Boreameryx , an unusual new artiodactyl (Mammalia) from the Pliocene of Arctic Canada and endemism in Arctic fossil mammals |
title_sort |
boreameryx , an unusual new artiodactyl (mammalia) from the pliocene of arctic canada and endemism in arctic fossil mammals |
publisher |
Canadian Science Publishing |
publishDate |
2007 |
url |
http://dx.doi.org/10.1139/e06-111 http://www.nrcresearchpress.com/doi/pdf/10.1139/e06-111 |
long_lat |
ENVELOPE(-56.848,-56.848,49.600,49.600) |
geographic |
Arctic Nunavut Ellesmere Island Canada Beaver Pond |
geographic_facet |
Arctic Nunavut Ellesmere Island Canada Beaver Pond |
genre |
Arctic Ellesmere Island Nunavut |
genre_facet |
Arctic Ellesmere Island Nunavut |
op_source |
Canadian Journal of Earth Sciences volume 44, issue 5, page 585-592 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e06-111 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
44 |
container_issue |
5 |
container_start_page |
585 |
op_container_end_page |
592 |
_version_ |
1785574770576719872 |