Paurodendron stellatum: a new Permian permineralized herbaceous lycopsid from the Prince Charles Mountains, Antarctica
Diminutive, silica-permineralized lycopsid axes, from a Guadalupian (Middle Permian) silicified peat in the Bainmedart Coal Measures of East Antarctica are described and assigned to Paurodendron stellatum sp. nov. Axes consist only of primary-growth tissues with a vascular system characterized by an...
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Enheten för paleobiologi
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-1345 https://doi.org/10.1016/j.revpalbo.2015.04.004 |
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ftnrm:oai:DiVA.org:nrm-1345 2023-05-15T14:05:22+02:00 Paurodendron stellatum: a new Permian permineralized herbaceous lycopsid from the Prince Charles Mountains, Antarctica McLoughlin, Stephen Drinnan, Andrew Slater, Ben Hilton, Jason 2015 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-1345 https://doi.org/10.1016/j.revpalbo.2015.04.004 eng eng Enheten för paleobiologi School of Botany, The University of Melbourne, Parkville, Victoria 3052, Australia School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, UK Review of Palaeobotany and Palynology, 0034-6667, 2015, 220, s. 1-15 http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-1345 doi:10.1016/j.revpalbo.2015.04.004 info:eu-repo/semantics/openAccess Heterosporous lycopsida Isoëtales Bainmedart Coal Measures Lycopsid anatomy Megaspore Gondwana Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap Article in journal info:eu-repo/semantics/article text 2015 ftnrm https://doi.org/10.1016/j.revpalbo.2015.04.004 2021-10-08T07:21:15Z Diminutive, silica-permineralized lycopsid axes, from a Guadalupian (Middle Permian) silicified peat in the Bainmedart Coal Measures of East Antarctica are described and assigned to Paurodendron stellatum sp. nov. Axes consist only of primary-growth tissues with a vascular system characterized by an exarch actinostele with 6–20 protoxylem points. Stems have a relatively narrow cortex of thin-walled cells that are commonly degraded, but the root cortex typically contains more robust, thick-walled cells. The stems bear helically inserted, elliptical–rhombic, ligulate microphylls. Roots possess an eccentrically positioned monarch vascular strand. Paurodendron stellatum is one of a very small number of anatomically preserved lycopsid axes described from the Gondwanan Permian and represents the first post-Carboniferous record of this genus. Based on dispersed vegetative remains, megaspores and microspores, herbaceous lycopsids, such as P. stellatum, appear to have been important understorey components of both low- and high-latitude mire forests of the late Palaeozoic. Reconstructing the lost forests of Antarctica: the palaeoecology, anatomy and phylogeny of the iconic Glossopteris flora Exceptional permineralized biotas - windows into the evolution and functional diversity of terrestrial ecosystems through time Article in Journal/Newspaper Antarc* Antarctica East Antarctica Prince Charles Mountains Swedish Museum of Natural History: Publications (DiVA) East Antarctica Glossopteris ENVELOPE(-113.717,-113.717,-84.733,-84.733) Prince Charles Mountains ENVELOPE(67.246,67.246,-71.427,-71.427) Review of Palaeobotany and Palynology 220 1 15 |
institution |
Open Polar |
collection |
Swedish Museum of Natural History: Publications (DiVA) |
op_collection_id |
ftnrm |
language |
English |
topic |
Heterosporous lycopsida Isoëtales Bainmedart Coal Measures Lycopsid anatomy Megaspore Gondwana Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap |
spellingShingle |
Heterosporous lycopsida Isoëtales Bainmedart Coal Measures Lycopsid anatomy Megaspore Gondwana Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap McLoughlin, Stephen Drinnan, Andrew Slater, Ben Hilton, Jason Paurodendron stellatum: a new Permian permineralized herbaceous lycopsid from the Prince Charles Mountains, Antarctica |
topic_facet |
Heterosporous lycopsida Isoëtales Bainmedart Coal Measures Lycopsid anatomy Megaspore Gondwana Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap |
description |
Diminutive, silica-permineralized lycopsid axes, from a Guadalupian (Middle Permian) silicified peat in the Bainmedart Coal Measures of East Antarctica are described and assigned to Paurodendron stellatum sp. nov. Axes consist only of primary-growth tissues with a vascular system characterized by an exarch actinostele with 6–20 protoxylem points. Stems have a relatively narrow cortex of thin-walled cells that are commonly degraded, but the root cortex typically contains more robust, thick-walled cells. The stems bear helically inserted, elliptical–rhombic, ligulate microphylls. Roots possess an eccentrically positioned monarch vascular strand. Paurodendron stellatum is one of a very small number of anatomically preserved lycopsid axes described from the Gondwanan Permian and represents the first post-Carboniferous record of this genus. Based on dispersed vegetative remains, megaspores and microspores, herbaceous lycopsids, such as P. stellatum, appear to have been important understorey components of both low- and high-latitude mire forests of the late Palaeozoic. Reconstructing the lost forests of Antarctica: the palaeoecology, anatomy and phylogeny of the iconic Glossopteris flora Exceptional permineralized biotas - windows into the evolution and functional diversity of terrestrial ecosystems through time |
format |
Article in Journal/Newspaper |
author |
McLoughlin, Stephen Drinnan, Andrew Slater, Ben Hilton, Jason |
author_facet |
McLoughlin, Stephen Drinnan, Andrew Slater, Ben Hilton, Jason |
author_sort |
McLoughlin, Stephen |
title |
Paurodendron stellatum: a new Permian permineralized herbaceous lycopsid from the Prince Charles Mountains, Antarctica |
title_short |
Paurodendron stellatum: a new Permian permineralized herbaceous lycopsid from the Prince Charles Mountains, Antarctica |
title_full |
Paurodendron stellatum: a new Permian permineralized herbaceous lycopsid from the Prince Charles Mountains, Antarctica |
title_fullStr |
Paurodendron stellatum: a new Permian permineralized herbaceous lycopsid from the Prince Charles Mountains, Antarctica |
title_full_unstemmed |
Paurodendron stellatum: a new Permian permineralized herbaceous lycopsid from the Prince Charles Mountains, Antarctica |
title_sort |
paurodendron stellatum: a new permian permineralized herbaceous lycopsid from the prince charles mountains, antarctica |
publisher |
Enheten för paleobiologi |
publishDate |
2015 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-1345 https://doi.org/10.1016/j.revpalbo.2015.04.004 |
long_lat |
ENVELOPE(-113.717,-113.717,-84.733,-84.733) ENVELOPE(67.246,67.246,-71.427,-71.427) |
geographic |
East Antarctica Glossopteris Prince Charles Mountains |
geographic_facet |
East Antarctica Glossopteris Prince Charles Mountains |
genre |
Antarc* Antarctica East Antarctica Prince Charles Mountains |
genre_facet |
Antarc* Antarctica East Antarctica Prince Charles Mountains |
op_relation |
Review of Palaeobotany and Palynology, 0034-6667, 2015, 220, s. 1-15 http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-1345 doi:10.1016/j.revpalbo.2015.04.004 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.revpalbo.2015.04.004 |
container_title |
Review of Palaeobotany and Palynology |
container_volume |
220 |
container_start_page |
1 |
op_container_end_page |
15 |
_version_ |
1766277186952626176 |