Habit and ecology of the Petriellales, an unusual group of seed plants from the triassic of Gondwana
Premise of research. Well-preserved Triassic plant fossils from Antarctica yield insights into the physiology of plant growth under the seasonal light regimes of warm polar forests, a type of ecosystem without any modern analogue. Among the many well-known Triassic plants from Antarctica is the enig...
Published in: | International Journal of Plant Sciences |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
University Of Chicago Press
|
Subjects: | |
Online Access: | http://hdl.handle.net/11336/18856 |
id |
ftconicet:oai:ri.conicet.gov.ar:11336/18856 |
---|---|
record_format |
openpolar |
spelling |
ftconicet:oai:ri.conicet.gov.ar:11336/18856 2023-10-09T21:44:48+02:00 Habit and ecology of the Petriellales, an unusual group of seed plants from the triassic of Gondwana Bomfleur, Benjamin Decombeix, Anne Laure Schwendemann, Andrew Escapa, Ignacio Hernan Taylor, Edith L. Taylor, Thomas N. McLoughlin, Stephen application/pdf http://hdl.handle.net/11336/18856 eng eng University Of Chicago Press info:eu-repo/semantics/altIdentifier/url/http://www.jstor.org/stable/10.1086/678087 info:eu-repo/semantics/altIdentifier/doi/10.1086/678087 http://hdl.handle.net/11336/18856 Bomfleur, Benjamin; Decombeix, Anne Laure; Schwendemann, Andrew; Escapa, Ignacio Hernan; Taylor, Edith L.; et al.; Habit and ecology of the Petriellales, an unusual group of seed plants from the triassic of Gondwana; University Of Chicago Press; International Journal of Plant Sciences; 175; 9; 28-10-2014; 1062-1075 1058-5893 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ PETRIELLALES GYMNOSPERMS TRIASSIC PALEOECOLOGY POLAR FORESTS ANTARCTICA https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1086/678087 2023-09-24T19:16:32Z Premise of research. Well-preserved Triassic plant fossils from Antarctica yield insights into the physiology of plant growth under the seasonal light regimes of warm polar forests, a type of ecosystem without any modern analogue. Among the many well-known Triassic plants from Antarctica is the enigmatic Petriellaea triangulata, a dispersed seedpod structure that is considered a possible homologue of the angiosperm carpel. However, the morphology and physiology of the plants that produced these seedpods have so far remained largely elusive. Methodology. Here, we describe petriellalean stems and leaves in compression and anatomical preservation that enable a detailed interpretation of the physiology and ecology of these plants. Pivotal results. Our results indicate that the Petriellales were diminutive, evergreen, shade-adapted perennial shrubs that colonized the understory of the deciduous forest biome of polar Gondwana. This life form is very unlike that of any other known seed-plant group of that time. By contrast, it fi ts remarkably well into the "dark and disturbed" niche that some authors considered to have sheltered the rise of the fl owering plants some 100 Myr later. Conclusions. The hitherto enigmatic Petriellales are now among the most comprehensively reconstructed groups of extinct seed plants and emerge as promising candidates for elucidating the mysterious origin of the angiosperms. Fil: Bomfleur, Benjamin. Swedish Museum of Natural History; Suecia Fil: Decombeix, Anne Laure. Universite Montpellier II; Francia Fil: Schwendemann, Andrew. Lander University; Estados Unidos Fil: Escapa, Ignacio Hernan. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Taylor, Edith L. University of Kansas; Estados Unidos Fil: Taylor, Thomas N. University of Kansas; Estados Unidos Fil: McLoughlin, Stephen. Swedish Museum Of Natural History; Suecia Article in Journal/Newspaper Antarc* Antarctica CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentina Edith ENVELOPE(-57.617,-57.617,-63.583,-63.583) Laure ENVELOPE(-63.350,-63.350,-64.767,-64.767) Suecia ENVELOPE(-62.617,-62.617,-66.733,-66.733) International Journal of Plant Sciences 175 9 1062 1075 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
PETRIELLALES GYMNOSPERMS TRIASSIC PALEOECOLOGY POLAR FORESTS ANTARCTICA https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
PETRIELLALES GYMNOSPERMS TRIASSIC PALEOECOLOGY POLAR FORESTS ANTARCTICA https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Bomfleur, Benjamin Decombeix, Anne Laure Schwendemann, Andrew Escapa, Ignacio Hernan Taylor, Edith L. Taylor, Thomas N. McLoughlin, Stephen Habit and ecology of the Petriellales, an unusual group of seed plants from the triassic of Gondwana |
topic_facet |
PETRIELLALES GYMNOSPERMS TRIASSIC PALEOECOLOGY POLAR FORESTS ANTARCTICA https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
Premise of research. Well-preserved Triassic plant fossils from Antarctica yield insights into the physiology of plant growth under the seasonal light regimes of warm polar forests, a type of ecosystem without any modern analogue. Among the many well-known Triassic plants from Antarctica is the enigmatic Petriellaea triangulata, a dispersed seedpod structure that is considered a possible homologue of the angiosperm carpel. However, the morphology and physiology of the plants that produced these seedpods have so far remained largely elusive. Methodology. Here, we describe petriellalean stems and leaves in compression and anatomical preservation that enable a detailed interpretation of the physiology and ecology of these plants. Pivotal results. Our results indicate that the Petriellales were diminutive, evergreen, shade-adapted perennial shrubs that colonized the understory of the deciduous forest biome of polar Gondwana. This life form is very unlike that of any other known seed-plant group of that time. By contrast, it fi ts remarkably well into the "dark and disturbed" niche that some authors considered to have sheltered the rise of the fl owering plants some 100 Myr later. Conclusions. The hitherto enigmatic Petriellales are now among the most comprehensively reconstructed groups of extinct seed plants and emerge as promising candidates for elucidating the mysterious origin of the angiosperms. Fil: Bomfleur, Benjamin. Swedish Museum of Natural History; Suecia Fil: Decombeix, Anne Laure. Universite Montpellier II; Francia Fil: Schwendemann, Andrew. Lander University; Estados Unidos Fil: Escapa, Ignacio Hernan. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Taylor, Edith L. University of Kansas; Estados Unidos Fil: Taylor, Thomas N. University of Kansas; Estados Unidos Fil: McLoughlin, Stephen. Swedish Museum Of Natural History; Suecia |
format |
Article in Journal/Newspaper |
author |
Bomfleur, Benjamin Decombeix, Anne Laure Schwendemann, Andrew Escapa, Ignacio Hernan Taylor, Edith L. Taylor, Thomas N. McLoughlin, Stephen |
author_facet |
Bomfleur, Benjamin Decombeix, Anne Laure Schwendemann, Andrew Escapa, Ignacio Hernan Taylor, Edith L. Taylor, Thomas N. McLoughlin, Stephen |
author_sort |
Bomfleur, Benjamin |
title |
Habit and ecology of the Petriellales, an unusual group of seed plants from the triassic of Gondwana |
title_short |
Habit and ecology of the Petriellales, an unusual group of seed plants from the triassic of Gondwana |
title_full |
Habit and ecology of the Petriellales, an unusual group of seed plants from the triassic of Gondwana |
title_fullStr |
Habit and ecology of the Petriellales, an unusual group of seed plants from the triassic of Gondwana |
title_full_unstemmed |
Habit and ecology of the Petriellales, an unusual group of seed plants from the triassic of Gondwana |
title_sort |
habit and ecology of the petriellales, an unusual group of seed plants from the triassic of gondwana |
publisher |
University Of Chicago Press |
url |
http://hdl.handle.net/11336/18856 |
long_lat |
ENVELOPE(-57.617,-57.617,-63.583,-63.583) ENVELOPE(-63.350,-63.350,-64.767,-64.767) ENVELOPE(-62.617,-62.617,-66.733,-66.733) |
geographic |
Argentina Edith Laure Suecia |
geographic_facet |
Argentina Edith Laure Suecia |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://www.jstor.org/stable/10.1086/678087 info:eu-repo/semantics/altIdentifier/doi/10.1086/678087 http://hdl.handle.net/11336/18856 Bomfleur, Benjamin; Decombeix, Anne Laure; Schwendemann, Andrew; Escapa, Ignacio Hernan; Taylor, Edith L.; et al.; Habit and ecology of the Petriellales, an unusual group of seed plants from the triassic of Gondwana; University Of Chicago Press; International Journal of Plant Sciences; 175; 9; 28-10-2014; 1062-1075 1058-5893 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1086/678087 |
container_title |
International Journal of Plant Sciences |
container_volume |
175 |
container_issue |
9 |
container_start_page |
1062 |
op_container_end_page |
1075 |
_version_ |
1779313734594854912 |