Novel preservation state of Dolerotheca (medullosalean male organ) from the Late Pennsylvanian of the Sydney Coalfield, Nova Scotia, Canada
A new preservation state for the medullosalean male organ Dolerotheca is exemplified by a detached 31-mm sideritic mold with intact coalified compression from shale from the roof of a coal seam in the Sydney Coalfield, Cape Breton Island, Nova Scotia, Canada. Clearly recognizable in the specimen is...
Published in: | Atlantic Geology |
---|---|
Main Authors: | , |
Format: | Text |
Language: | English |
Published: |
Atlantic Geoscience Society
2019
|
Subjects: | |
Online Access: | http://id.erudit.org/iderudit/1060419ar https://doi.org/10.4138/atlgeol.2019.008 |
id |
fterudit:oai:erudit.org:1060419ar |
---|---|
record_format |
openpolar |
spelling |
fterudit:oai:erudit.org:1060419ar 2023-05-15T15:46:46+02:00 Novel preservation state of Dolerotheca (medullosalean male organ) from the Late Pennsylvanian of the Sydney Coalfield, Nova Scotia, Canada Zodrow, Erwin L. Mastalerz, Maria 2019 http://id.erudit.org/iderudit/1060419ar https://doi.org/10.4138/atlgeol.2019.008 en eng Atlantic Geoscience Society Érudit Atlantic Geology : Journal of the Atlantic Geoscience Society vol. 55 (2019) http://id.erudit.org/iderudit/1060419ar doi:10.4138/atlgeol.2019.008 All Rights Reserved ©, 2019Atlantic Geology Palaeontology (plants) text 2019 fterudit https://doi.org/10.4138/atlgeol.2019.008 2020-05-30T23:10:36Z A new preservation state for the medullosalean male organ Dolerotheca is exemplified by a detached 31-mm sideritic mold with intact coalified compression from shale from the roof of a coal seam in the Sydney Coalfield, Cape Breton Island, Nova Scotia, Canada. Clearly recognizable in the specimen is the quadripartite campanulum. Furthermore, maceration yielded significant internal information on acellular, cuticular, stomatiferous and pubescent surfaces, and prepollen sacs with grains. Stomata are rare and of the cyclocytic type. The rectangular prepollen sacs occur as doubly paired rows of sporangia that are radially arranged, and contain ellipsoidal prepollen grains 400−520 μm long and circular prepollen grains 330−460 μm in diameter. The approximate ratio of circular to ellipsoidal grains is 1:2. Regardless of shape, the prepollen grains are attributable to the genus Monoletes. The circular grains bear vestigial trilete marks. Infrared-based functional-group chemistry distinguishes between the cover-type compression state and prepollen grains on the basis of higher aliphatic and oxygenated group contents in the grains. In summary, the specimen represents a novel state of nodular preservation with intact compression. Although the specimen is attributed to the genus Dolerotheca, specific assignment is not possible because of limited preservation and material. Text Breton Island Érudit.org (Université Montréal) Breton Island ENVELOPE(141.383,141.383,-66.800,-66.800) Canada Atlantic Geology 251 263 |
institution |
Open Polar |
collection |
Érudit.org (Université Montréal) |
op_collection_id |
fterudit |
language |
English |
topic |
Palaeontology (plants) |
spellingShingle |
Palaeontology (plants) Zodrow, Erwin L. Mastalerz, Maria Novel preservation state of Dolerotheca (medullosalean male organ) from the Late Pennsylvanian of the Sydney Coalfield, Nova Scotia, Canada |
topic_facet |
Palaeontology (plants) |
description |
A new preservation state for the medullosalean male organ Dolerotheca is exemplified by a detached 31-mm sideritic mold with intact coalified compression from shale from the roof of a coal seam in the Sydney Coalfield, Cape Breton Island, Nova Scotia, Canada. Clearly recognizable in the specimen is the quadripartite campanulum. Furthermore, maceration yielded significant internal information on acellular, cuticular, stomatiferous and pubescent surfaces, and prepollen sacs with grains. Stomata are rare and of the cyclocytic type. The rectangular prepollen sacs occur as doubly paired rows of sporangia that are radially arranged, and contain ellipsoidal prepollen grains 400−520 μm long and circular prepollen grains 330−460 μm in diameter. The approximate ratio of circular to ellipsoidal grains is 1:2. Regardless of shape, the prepollen grains are attributable to the genus Monoletes. The circular grains bear vestigial trilete marks. Infrared-based functional-group chemistry distinguishes between the cover-type compression state and prepollen grains on the basis of higher aliphatic and oxygenated group contents in the grains. In summary, the specimen represents a novel state of nodular preservation with intact compression. Although the specimen is attributed to the genus Dolerotheca, specific assignment is not possible because of limited preservation and material. |
format |
Text |
author |
Zodrow, Erwin L. Mastalerz, Maria |
author_facet |
Zodrow, Erwin L. Mastalerz, Maria |
author_sort |
Zodrow, Erwin L. |
title |
Novel preservation state of Dolerotheca (medullosalean male organ) from the Late Pennsylvanian of the Sydney Coalfield, Nova Scotia, Canada |
title_short |
Novel preservation state of Dolerotheca (medullosalean male organ) from the Late Pennsylvanian of the Sydney Coalfield, Nova Scotia, Canada |
title_full |
Novel preservation state of Dolerotheca (medullosalean male organ) from the Late Pennsylvanian of the Sydney Coalfield, Nova Scotia, Canada |
title_fullStr |
Novel preservation state of Dolerotheca (medullosalean male organ) from the Late Pennsylvanian of the Sydney Coalfield, Nova Scotia, Canada |
title_full_unstemmed |
Novel preservation state of Dolerotheca (medullosalean male organ) from the Late Pennsylvanian of the Sydney Coalfield, Nova Scotia, Canada |
title_sort |
novel preservation state of dolerotheca (medullosalean male organ) from the late pennsylvanian of the sydney coalfield, nova scotia, canada |
publisher |
Atlantic Geoscience Society |
publishDate |
2019 |
url |
http://id.erudit.org/iderudit/1060419ar https://doi.org/10.4138/atlgeol.2019.008 |
long_lat |
ENVELOPE(141.383,141.383,-66.800,-66.800) |
geographic |
Breton Island Canada |
geographic_facet |
Breton Island Canada |
genre |
Breton Island |
genre_facet |
Breton Island |
op_relation |
Atlantic Geology : Journal of the Atlantic Geoscience Society vol. 55 (2019) http://id.erudit.org/iderudit/1060419ar doi:10.4138/atlgeol.2019.008 |
op_rights |
All Rights Reserved ©, 2019Atlantic Geology |
op_doi |
https://doi.org/10.4138/atlgeol.2019.008 |
container_title |
Atlantic Geology |
container_start_page |
251 |
op_container_end_page |
263 |
_version_ |
1766381478132842496 |