Pteruchus (microsporophyll): part 2 of a reassessment of Gondwana Triassic plant genera and a reclassification of some previously attributed
The microsporophyll genus Pteruchus, belonging to the pteridosperms (seed ferns) in the family Umkomasiaceae (Corystospermaceae), is reassessed comprehensively worldwide and emended. All records are analysed, and some fertile structures previously attributed are reclassified. The Lower Jurassic reco...
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ftunivnewengland:oai:rune.une.edu.au:1959.11/51715 2023-08-27T04:06:10+02:00 Pteruchus (microsporophyll): part 2 of a reassessment of Gondwana Triassic plant genera and a reclassification of some previously attributed Anderson, Heidi M Barbacka, Maria Bamford, Marion K Holmes, W B Keith Anderson, John M UNE Business School 2019 https://hdl.handle.net/1959.11/51715 en eng Taylor & Francis 10.1080/03115518.2019.1617348 https://hdl.handle.net/1959.11/51715 une:1959.11/51715 Journal Article 2019 ftunivnewengland 2023-08-10T19:36:58Z The microsporophyll genus Pteruchus, belonging to the pteridosperms (seed ferns) in the family Umkomasiaceae (Corystospermaceae), is reassessed comprehensively worldwide and emended. All records are analysed, and some fertile structures previously attributed are reclassified. The Lower Jurassic record of Pteruchus from Germany is ascribed to a new genus as Muelkirchium septentrionalis. Pteruchus is shown to be restricted to the Triassic of Gondwana and is clearly affiliated with the megasporophyll genus Umkomasia and the vegetative leaf genus Dicroidium. It is well represented from Argentina, Antarctica, Australia and southern Africa; the Molteno Formation of southern Africa is by far the most comprehensively sampled, yielding three species and 425 specimens from 22 localities. Nomenclatural problems with the species of Pteruchus are addressed. A key to Pteruchus species is provided; geographic and stratigraphic distributions are tabulated. Article in Journal/Newspaper Antarc* Antarctica Research UNE - University of New England at Armidale, NSW Australia Argentina |
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Open Polar |
collection |
Research UNE - University of New England at Armidale, NSW Australia |
op_collection_id |
ftunivnewengland |
language |
English |
description |
The microsporophyll genus Pteruchus, belonging to the pteridosperms (seed ferns) in the family Umkomasiaceae (Corystospermaceae), is reassessed comprehensively worldwide and emended. All records are analysed, and some fertile structures previously attributed are reclassified. The Lower Jurassic record of Pteruchus from Germany is ascribed to a new genus as Muelkirchium septentrionalis. Pteruchus is shown to be restricted to the Triassic of Gondwana and is clearly affiliated with the megasporophyll genus Umkomasia and the vegetative leaf genus Dicroidium. It is well represented from Argentina, Antarctica, Australia and southern Africa; the Molteno Formation of southern Africa is by far the most comprehensively sampled, yielding three species and 425 specimens from 22 localities. Nomenclatural problems with the species of Pteruchus are addressed. A key to Pteruchus species is provided; geographic and stratigraphic distributions are tabulated. |
format |
Article in Journal/Newspaper |
author |
Anderson, Heidi M Barbacka, Maria Bamford, Marion K Holmes, W B Keith Anderson, John M UNE Business School |
spellingShingle |
Anderson, Heidi M Barbacka, Maria Bamford, Marion K Holmes, W B Keith Anderson, John M UNE Business School Pteruchus (microsporophyll): part 2 of a reassessment of Gondwana Triassic plant genera and a reclassification of some previously attributed |
author_facet |
Anderson, Heidi M Barbacka, Maria Bamford, Marion K Holmes, W B Keith Anderson, John M UNE Business School |
author_sort |
Anderson, Heidi M |
title |
Pteruchus (microsporophyll): part 2 of a reassessment of Gondwana Triassic plant genera and a reclassification of some previously attributed |
title_short |
Pteruchus (microsporophyll): part 2 of a reassessment of Gondwana Triassic plant genera and a reclassification of some previously attributed |
title_full |
Pteruchus (microsporophyll): part 2 of a reassessment of Gondwana Triassic plant genera and a reclassification of some previously attributed |
title_fullStr |
Pteruchus (microsporophyll): part 2 of a reassessment of Gondwana Triassic plant genera and a reclassification of some previously attributed |
title_full_unstemmed |
Pteruchus (microsporophyll): part 2 of a reassessment of Gondwana Triassic plant genera and a reclassification of some previously attributed |
title_sort |
pteruchus (microsporophyll): part 2 of a reassessment of gondwana triassic plant genera and a reclassification of some previously attributed |
publisher |
Taylor & Francis |
publishDate |
2019 |
url |
https://hdl.handle.net/1959.11/51715 |
geographic |
Argentina |
geographic_facet |
Argentina |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
10.1080/03115518.2019.1617348 https://hdl.handle.net/1959.11/51715 une:1959.11/51715 |
_version_ |
1775346953770500096 |