Macrofossil evidence for pleuromeialean lycophytes from the Triassic of Antarctica
Triassic microfloras from Antarctica contain abundant lycophyte spores. However, macrofossils of this group of plants are missing, and thus the precise affinities of the spore producers remain unknown. Macrofossil remains of a pleuro− meialean lycophyte, including an incomplete strobilus, isolated s...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.468.32 2023-05-15T14:05:25+02:00 Macrofossil evidence for pleuromeialean lycophytes from the Triassic of Antarctica Benjamin Bomfleur Michael Krings Edith L. Taylor Thomas N. Taylor The Pennsylvania State University CiteSeerX Archives 2010 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.468.32 en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.468.32 Metadata may be used without restrictions as long as the oai identifier remains attached to it. https://muzewol.pan.pl/archive/published/app56/app20100022.pdf Key words Isoetales Pleuromeia Mesenteriophyllum phytogeography palaeoecology air chambers Transantarctic Mountains Antarctica text 2010 ftciteseerx 2016-01-08T07:03:59Z Triassic microfloras from Antarctica contain abundant lycophyte spores. However, macrofossils of this group of plants are missing, and thus the precise affinities of the spore producers remain unknown. Macrofossil remains of a pleuro− meialean lycophyte, including an incomplete strobilus, isolated sporophylls and sporangia, as well as abundant mega− spores, occur on a single rock sample from the central Transantarctic Mountains. Also occurring on the same surface is Mesenteriophyllum serratum, a strap−shaped leaf morphotype of uncertain affinity previously known only from the Kyrgyz Republic and the Taimyr Peninsula. The leaves display alternating transverse ridges and depressions that are sim− ilar to structures seen in compressed leaves of various isoetalean lycophytes. Leaf morphology and anatomy, together with the close association of the other lycophyte remains, suggest that M. serratum represents a pleuromeialean lycophyte leaf, which was part of the same plant that produced the sporophylls and sporangia. Sedimentological data indicate that this lycophyte inhabited a swampy, probably coal−forming overbank environment, which contrasts with the assumed Text Antarc* Antarctica Taimyr Unknown Transantarctic Mountains |
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English |
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Key words Isoetales Pleuromeia Mesenteriophyllum phytogeography palaeoecology air chambers Transantarctic Mountains Antarctica |
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Key words Isoetales Pleuromeia Mesenteriophyllum phytogeography palaeoecology air chambers Transantarctic Mountains Antarctica Benjamin Bomfleur Michael Krings Edith L. Taylor Thomas N. Taylor Macrofossil evidence for pleuromeialean lycophytes from the Triassic of Antarctica |
topic_facet |
Key words Isoetales Pleuromeia Mesenteriophyllum phytogeography palaeoecology air chambers Transantarctic Mountains Antarctica |
description |
Triassic microfloras from Antarctica contain abundant lycophyte spores. However, macrofossils of this group of plants are missing, and thus the precise affinities of the spore producers remain unknown. Macrofossil remains of a pleuro− meialean lycophyte, including an incomplete strobilus, isolated sporophylls and sporangia, as well as abundant mega− spores, occur on a single rock sample from the central Transantarctic Mountains. Also occurring on the same surface is Mesenteriophyllum serratum, a strap−shaped leaf morphotype of uncertain affinity previously known only from the Kyrgyz Republic and the Taimyr Peninsula. The leaves display alternating transverse ridges and depressions that are sim− ilar to structures seen in compressed leaves of various isoetalean lycophytes. Leaf morphology and anatomy, together with the close association of the other lycophyte remains, suggest that M. serratum represents a pleuromeialean lycophyte leaf, which was part of the same plant that produced the sporophylls and sporangia. Sedimentological data indicate that this lycophyte inhabited a swampy, probably coal−forming overbank environment, which contrasts with the assumed |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Benjamin Bomfleur Michael Krings Edith L. Taylor Thomas N. Taylor |
author_facet |
Benjamin Bomfleur Michael Krings Edith L. Taylor Thomas N. Taylor |
author_sort |
Benjamin Bomfleur |
title |
Macrofossil evidence for pleuromeialean lycophytes from the Triassic of Antarctica |
title_short |
Macrofossil evidence for pleuromeialean lycophytes from the Triassic of Antarctica |
title_full |
Macrofossil evidence for pleuromeialean lycophytes from the Triassic of Antarctica |
title_fullStr |
Macrofossil evidence for pleuromeialean lycophytes from the Triassic of Antarctica |
title_full_unstemmed |
Macrofossil evidence for pleuromeialean lycophytes from the Triassic of Antarctica |
title_sort |
macrofossil evidence for pleuromeialean lycophytes from the triassic of antarctica |
publishDate |
2010 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.468.32 |
geographic |
Transantarctic Mountains |
geographic_facet |
Transantarctic Mountains |
genre |
Antarc* Antarctica Taimyr |
genre_facet |
Antarc* Antarctica Taimyr |
op_source |
https://muzewol.pan.pl/archive/published/app56/app20100022.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.468.32 |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766277321894920192 |