A reappraisal of Neocalamites and Schizoneura (fossil Equisetales) based on material from the Triassic of East Antarctica
Sphenophytes are a common floral element in the Triassic of Gondwana. Most sphenophyte compression fossils have been conventionally assigned to a few, presumably very widespread species of Neocalamites based on vegetative features of the stems (or pith casts) and the foliage. During recent decades,...
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Language: | English |
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ftconicet:oai:ri.conicet.gov.ar:11336/1608 2023-10-09T21:45:10+02:00 A reappraisal of Neocalamites and Schizoneura (fossil Equisetales) based on material from the Triassic of East Antarctica Bomfleur, Benjamin Escapa, Ignacio Hernán Serbet, Rudolph Taylor, Edith L. Taylor, Thomas N. application/pdf http://hdl.handle.net/11336/1608 eng eng Taylor & Francis Ltd info:eu-repo/semantics/altIdentifier/doi/10.1080/03115518.2013.764693 http://hdl.handle.net/11336/1608 Bomfleur, Benjamin; Escapa, Ignacio Hernán; Serbet, Rudolph; Taylor, Edith L.; Taylor, Thomas N.; A reappraisal of Neocalamites and Schizoneura (fossil Equisetales) based on material from the Triassic of East Antarctica; Taylor & Francis Ltd; Alcheringa; 37; 3; 5-2013; 349-365 0311-5518 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ NODODENDRON PARASCHIZONEURA SPHENOPHYTA TRANSANTARCTIC MOUNTAINS VICTORIA LAND 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/10.1080/03115518.2013.764693 2023-09-24T19:10:44Z Sphenophytes are a common floral element in the Triassic of Gondwana. Most sphenophyte compression fossils have been conventionally assigned to a few, presumably very widespread species of Neocalamites based on vegetative features of the stems (or pith casts) and the foliage. During recent decades, however, new reports on morphological and anatomical details of some of these fossils have cast doubt on the systematic affinities of many Gondwanan Triassic sphenophytes. Here we describe Neocalamites suberosus (Artabe & Zamuner) nov. comb. et emend. and Schizoneura africana Feistmantel emend. from several Triassic deposits in the central Transantarctic Mountains and Victoria Land, East Antarctica. The material enables a critical reevaluation of morphological and anatomical features that have been historically used to define the two genera, including leaf- base morphology, degree of leaf fusion, stem vasculature and vallecular canals, and features of the nodal diaphragm. The diagnoses of Neocalamites and Schizoneura are emended so that they more accurately reflect recent advances in our understanding of the anatomy and ontogeny of these plants. Fil: Bomfleur, Benjamin. University of Kansas; Estados Unidos de América; Fil: Escapa, Ignacio Hernán. Museo Paleontologico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Serbet, Rudolph. University of Kansas; Argentina Fil: Taylor, Edith L. University of Kansas; Estados Unidos de América; Fil: Taylor, Thomas N. University of Kansas; Estados Unidos de América; Article in Journal/Newspaper Antarc* Antarctica East Antarctica Victoria Land CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) East Antarctica Victoria Land Transantarctic Mountains Argentina Edith ENVELOPE(-57.617,-57.617,-63.583,-63.583) Rudolph ENVELOPE(-62.433,-62.433,-64.900,-64.900) Hernán ENVELOPE(-62.867,-62.867,-64.900,-64.900) Alcheringa: An Australasian Journal of Palaeontology 37 3 349 365 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
NODODENDRON PARASCHIZONEURA SPHENOPHYTA TRANSANTARCTIC MOUNTAINS VICTORIA LAND https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
NODODENDRON PARASCHIZONEURA SPHENOPHYTA TRANSANTARCTIC MOUNTAINS VICTORIA LAND https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Bomfleur, Benjamin Escapa, Ignacio Hernán Serbet, Rudolph Taylor, Edith L. Taylor, Thomas N. A reappraisal of Neocalamites and Schizoneura (fossil Equisetales) based on material from the Triassic of East Antarctica |
topic_facet |
NODODENDRON PARASCHIZONEURA SPHENOPHYTA TRANSANTARCTIC MOUNTAINS VICTORIA LAND https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
Sphenophytes are a common floral element in the Triassic of Gondwana. Most sphenophyte compression fossils have been conventionally assigned to a few, presumably very widespread species of Neocalamites based on vegetative features of the stems (or pith casts) and the foliage. During recent decades, however, new reports on morphological and anatomical details of some of these fossils have cast doubt on the systematic affinities of many Gondwanan Triassic sphenophytes. Here we describe Neocalamites suberosus (Artabe & Zamuner) nov. comb. et emend. and Schizoneura africana Feistmantel emend. from several Triassic deposits in the central Transantarctic Mountains and Victoria Land, East Antarctica. The material enables a critical reevaluation of morphological and anatomical features that have been historically used to define the two genera, including leaf- base morphology, degree of leaf fusion, stem vasculature and vallecular canals, and features of the nodal diaphragm. The diagnoses of Neocalamites and Schizoneura are emended so that they more accurately reflect recent advances in our understanding of the anatomy and ontogeny of these plants. Fil: Bomfleur, Benjamin. University of Kansas; Estados Unidos de América; Fil: Escapa, Ignacio Hernán. Museo Paleontologico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Serbet, Rudolph. University of Kansas; Argentina Fil: Taylor, Edith L. University of Kansas; Estados Unidos de América; Fil: Taylor, Thomas N. University of Kansas; Estados Unidos de América; |
format |
Article in Journal/Newspaper |
author |
Bomfleur, Benjamin Escapa, Ignacio Hernán Serbet, Rudolph Taylor, Edith L. Taylor, Thomas N. |
author_facet |
Bomfleur, Benjamin Escapa, Ignacio Hernán Serbet, Rudolph Taylor, Edith L. Taylor, Thomas N. |
author_sort |
Bomfleur, Benjamin |
title |
A reappraisal of Neocalamites and Schizoneura (fossil Equisetales) based on material from the Triassic of East Antarctica |
title_short |
A reappraisal of Neocalamites and Schizoneura (fossil Equisetales) based on material from the Triassic of East Antarctica |
title_full |
A reappraisal of Neocalamites and Schizoneura (fossil Equisetales) based on material from the Triassic of East Antarctica |
title_fullStr |
A reappraisal of Neocalamites and Schizoneura (fossil Equisetales) based on material from the Triassic of East Antarctica |
title_full_unstemmed |
A reappraisal of Neocalamites and Schizoneura (fossil Equisetales) based on material from the Triassic of East Antarctica |
title_sort |
reappraisal of neocalamites and schizoneura (fossil equisetales) based on material from the triassic of east antarctica |
publisher |
Taylor & Francis Ltd |
url |
http://hdl.handle.net/11336/1608 |
long_lat |
ENVELOPE(-57.617,-57.617,-63.583,-63.583) ENVELOPE(-62.433,-62.433,-64.900,-64.900) ENVELOPE(-62.867,-62.867,-64.900,-64.900) |
geographic |
East Antarctica Victoria Land Transantarctic Mountains Argentina Edith Rudolph Hernán |
geographic_facet |
East Antarctica Victoria Land Transantarctic Mountains Argentina Edith Rudolph Hernán |
genre |
Antarc* Antarctica East Antarctica Victoria Land |
genre_facet |
Antarc* Antarctica East Antarctica Victoria Land |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1080/03115518.2013.764693 http://hdl.handle.net/11336/1608 Bomfleur, Benjamin; Escapa, Ignacio Hernán; Serbet, Rudolph; Taylor, Edith L.; Taylor, Thomas N.; A reappraisal of Neocalamites and Schizoneura (fossil Equisetales) based on material from the Triassic of East Antarctica; Taylor & Francis Ltd; Alcheringa; 37; 3; 5-2013; 349-365 0311-5518 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1080/03115518.2013.764693 |
container_title |
Alcheringa: An Australasian Journal of Palaeontology |
container_volume |
37 |
container_issue |
3 |
container_start_page |
349 |
op_container_end_page |
365 |
_version_ |
1779316328276951040 |