THREE CRETACEOUS WOODS FROM THE CANADIAN ARCTIC
The structure is described for three new species of coniferous woods from Cretaceous formations in the Canadian Arctic which differ in various features from fossil woods previously recorded. Cedroxylon disjunctum sp. nov. is distinguished by gaps in cell continuity in the marginal rows of the xylem...
Published in: | Canadian Journal of Botany |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Canadian Science Publishing
1957
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Online Access: | http://dx.doi.org/10.1139/b57-030 http://www.nrcresearchpress.com/doi/pdf/10.1139/b57-030 |
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crcansciencepubl:10.1139/b57-030 2024-06-23T07:49:42+00:00 THREE CRETACEOUS WOODS FROM THE CANADIAN ARCTIC Bannan, M. W. Fry, W. L. 1957 http://dx.doi.org/10.1139/b57-030 http://www.nrcresearchpress.com/doi/pdf/10.1139/b57-030 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Botany volume 35, issue 3, page 327-337 ISSN 0008-4026 journal-article 1957 crcansciencepubl https://doi.org/10.1139/b57-030 2024-06-06T04:11:18Z The structure is described for three new species of coniferous woods from Cretaceous formations in the Canadian Arctic which differ in various features from fossil woods previously recorded. Cedroxylon disjunctum sp. nov. is distinguished by gaps in cell continuity in the marginal rows of the xylem rays, a characteristic not hitherto described for Cedroxylon but found in living conifers such as Abies and Keteleeria. The two Piceoxylon woods possess resin ducts devoid of tylosoids, the ducts in Piceoxylon christopheri sp. nov. having an epithelium which consists entirely of thick-walled, pitted cells, whereas in P. thomsoni sp. nov. the walls of the epithelial cells vary from slightly to moderately thickened. Article in Journal/Newspaper Arctic Canadian Science Publishing Arctic Canadian Journal of Botany 35 3 327 337 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
The structure is described for three new species of coniferous woods from Cretaceous formations in the Canadian Arctic which differ in various features from fossil woods previously recorded. Cedroxylon disjunctum sp. nov. is distinguished by gaps in cell continuity in the marginal rows of the xylem rays, a characteristic not hitherto described for Cedroxylon but found in living conifers such as Abies and Keteleeria. The two Piceoxylon woods possess resin ducts devoid of tylosoids, the ducts in Piceoxylon christopheri sp. nov. having an epithelium which consists entirely of thick-walled, pitted cells, whereas in P. thomsoni sp. nov. the walls of the epithelial cells vary from slightly to moderately thickened. |
format |
Article in Journal/Newspaper |
author |
Bannan, M. W. Fry, W. L. |
spellingShingle |
Bannan, M. W. Fry, W. L. THREE CRETACEOUS WOODS FROM THE CANADIAN ARCTIC |
author_facet |
Bannan, M. W. Fry, W. L. |
author_sort |
Bannan, M. W. |
title |
THREE CRETACEOUS WOODS FROM THE CANADIAN ARCTIC |
title_short |
THREE CRETACEOUS WOODS FROM THE CANADIAN ARCTIC |
title_full |
THREE CRETACEOUS WOODS FROM THE CANADIAN ARCTIC |
title_fullStr |
THREE CRETACEOUS WOODS FROM THE CANADIAN ARCTIC |
title_full_unstemmed |
THREE CRETACEOUS WOODS FROM THE CANADIAN ARCTIC |
title_sort |
three cretaceous woods from the canadian arctic |
publisher |
Canadian Science Publishing |
publishDate |
1957 |
url |
http://dx.doi.org/10.1139/b57-030 http://www.nrcresearchpress.com/doi/pdf/10.1139/b57-030 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Canadian Journal of Botany volume 35, issue 3, page 327-337 ISSN 0008-4026 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/b57-030 |
container_title |
Canadian Journal of Botany |
container_volume |
35 |
container_issue |
3 |
container_start_page |
327 |
op_container_end_page |
337 |
_version_ |
1802640308166459392 |