Additions to the family Miroviaceae (Coniferae) from the Lower Cretaceous of West Greenland and Germany: Mirovia groenlandica n. sp., Tritaenia crassa (Seward) comb, nov., and Tritaenia linkii Magdefrau et Rudolph emend.
The genus Tritaenia with its type species T. linkii Magdefrau et Rudolph emend, from the Wealden of Germany has been referred to the family Miroviaceae Bose et Manum, comprising Mesozoic and mostly Arctic conifer foliage with ‘Sciadopitys-like’ stomatal distribution. Two other additions to the Mirov...
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Norwegian Polar Institute
1991
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ftjpolarres:oai:journals.openacademia.net:article/2810 2023-05-15T15:03:23+02:00 Additions to the family Miroviaceae (Coniferae) from the Lower Cretaceous of West Greenland and Germany: Mirovia groenlandica n. sp., Tritaenia crassa (Seward) comb, nov., and Tritaenia linkii Magdefrau et Rudolph emend. N. Bose, Mahendra Manum, Svein B. 1991-01-03 application/pdf https://polarresearch.net/index.php/polar/article/view/2810 https://doi.org/10.3402/polar.v9i1.6776 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2810/6437 https://polarresearch.net/index.php/polar/article/view/2810 doi:10.3402/polar.v9i1.6776 Copyright (c) 2018 Polar Research Polar Research; Vol. 9 No. 1 (1991); 9-20 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1991 ftjpolarres https://doi.org/10.3402/polar.v9i1.6776 2021-11-11T19:13:09Z The genus Tritaenia with its type species T. linkii Magdefrau et Rudolph emend, from the Wealden of Germany has been referred to the family Miroviaceae Bose et Manum, comprising Mesozoic and mostly Arctic conifer foliage with ‘Sciadopitys-like’ stomatal distribution. Two other additions to the Miroviaceae, both from the Lower Cretaceous of West Greenland, arc Pityophyllum crassum Seward, now attributed to Tritaenia, and Mirovia groenlandica n. sp., described on leafy stems and detached leaves. Tritaenia has distinct stomatal bands within the median stomatal zone. This and other stomatal distributions in the Miroviaceae and their implications for the interpretation of leaf venation are discussed with the conclusion that two veins are most likely indicated. Diagnostic characters and stratigraphic and geographic distribution of the presently known miroviaceous taxa are summarized. Article in Journal/Newspaper Arctic Greenland Polar Research Polar Research (E-Journal) Arctic Greenland Rudolph ENVELOPE(-62.433,-62.433,-64.900,-64.900) Polar Research 9 1 9 20 |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
description |
The genus Tritaenia with its type species T. linkii Magdefrau et Rudolph emend, from the Wealden of Germany has been referred to the family Miroviaceae Bose et Manum, comprising Mesozoic and mostly Arctic conifer foliage with ‘Sciadopitys-like’ stomatal distribution. Two other additions to the Miroviaceae, both from the Lower Cretaceous of West Greenland, arc Pityophyllum crassum Seward, now attributed to Tritaenia, and Mirovia groenlandica n. sp., described on leafy stems and detached leaves. Tritaenia has distinct stomatal bands within the median stomatal zone. This and other stomatal distributions in the Miroviaceae and their implications for the interpretation of leaf venation are discussed with the conclusion that two veins are most likely indicated. Diagnostic characters and stratigraphic and geographic distribution of the presently known miroviaceous taxa are summarized. |
format |
Article in Journal/Newspaper |
author |
N. Bose, Mahendra Manum, Svein B. |
spellingShingle |
N. Bose, Mahendra Manum, Svein B. Additions to the family Miroviaceae (Coniferae) from the Lower Cretaceous of West Greenland and Germany: Mirovia groenlandica n. sp., Tritaenia crassa (Seward) comb, nov., and Tritaenia linkii Magdefrau et Rudolph emend. |
author_facet |
N. Bose, Mahendra Manum, Svein B. |
author_sort |
N. Bose, Mahendra |
title |
Additions to the family Miroviaceae (Coniferae) from the Lower Cretaceous of West Greenland and Germany: Mirovia groenlandica n. sp., Tritaenia crassa (Seward) comb, nov., and Tritaenia linkii Magdefrau et Rudolph emend. |
title_short |
Additions to the family Miroviaceae (Coniferae) from the Lower Cretaceous of West Greenland and Germany: Mirovia groenlandica n. sp., Tritaenia crassa (Seward) comb, nov., and Tritaenia linkii Magdefrau et Rudolph emend. |
title_full |
Additions to the family Miroviaceae (Coniferae) from the Lower Cretaceous of West Greenland and Germany: Mirovia groenlandica n. sp., Tritaenia crassa (Seward) comb, nov., and Tritaenia linkii Magdefrau et Rudolph emend. |
title_fullStr |
Additions to the family Miroviaceae (Coniferae) from the Lower Cretaceous of West Greenland and Germany: Mirovia groenlandica n. sp., Tritaenia crassa (Seward) comb, nov., and Tritaenia linkii Magdefrau et Rudolph emend. |
title_full_unstemmed |
Additions to the family Miroviaceae (Coniferae) from the Lower Cretaceous of West Greenland and Germany: Mirovia groenlandica n. sp., Tritaenia crassa (Seward) comb, nov., and Tritaenia linkii Magdefrau et Rudolph emend. |
title_sort |
additions to the family miroviaceae (coniferae) from the lower cretaceous of west greenland and germany: mirovia groenlandica n. sp., tritaenia crassa (seward) comb, nov., and tritaenia linkii magdefrau et rudolph emend. |
publisher |
Norwegian Polar Institute |
publishDate |
1991 |
url |
https://polarresearch.net/index.php/polar/article/view/2810 https://doi.org/10.3402/polar.v9i1.6776 |
long_lat |
ENVELOPE(-62.433,-62.433,-64.900,-64.900) |
geographic |
Arctic Greenland Rudolph |
geographic_facet |
Arctic Greenland Rudolph |
genre |
Arctic Greenland Polar Research |
genre_facet |
Arctic Greenland Polar Research |
op_source |
Polar Research; Vol. 9 No. 1 (1991); 9-20 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2810/6437 https://polarresearch.net/index.php/polar/article/view/2810 doi:10.3402/polar.v9i1.6776 |
op_rights |
Copyright (c) 2018 Polar Research |
op_doi |
https://doi.org/10.3402/polar.v9i1.6776 |
container_title |
Polar Research |
container_volume |
9 |
container_issue |
1 |
container_start_page |
9 |
op_container_end_page |
20 |
_version_ |
1766335235957456896 |