Tracking tetrapod diversification during the Paleozoic in western Gondwana

Autores
Marsicano, Claudia A.; Ottone, Eduardo Guillermo; Mancuso, Adriana Cecilia
Año de publicación
2010
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The oldest record of amniotes in Gondwana corresponds to the Artinskian (Cisuralian) mesosaurids, an endemic group of aquatic "parareptiles" only known from western Gondwana. It is not until the Wordian-Capitanian (Guadalupian) that fairly diverse amniote faunas are known from southern Africa. During the Paleozoic, the record of non-amniotes tetrapods is even more erratic. Particularly in western Gondwana, they are known from Pennsylvanian temnospondyl footprints from Chile and only since the Lopingian rich temnospondyl faunas are well known from several Gondwanan basins. In the last years, levels containing tetrapod footprints have been described from putative Cisuralian-Guadalupian beds of Argentina (La Rioja and La Pampa provinces). These records show the presence of different groups of tetrapods, mostly represented by small individuals, and have been assigned to both amniote and temnospondyl trackmakers. Also from Permian levels but in southern Mendoza (San Rafael), several tetrapod footprints and trackways have been recently re-evaluated. They revealed a rather diverse amniote fauna, which includes small-to-medium sized animals, developed in a desert environment. The importance of this record has been recently reinforced as the bearing levels were assigned to the Artinskian, the same age of the mesosauridbearing levels. This new scenario has important implications for understanding the patterns of diversification of the Gondwanan tetrapod faunas during the Paleozoic as it would imply that amniotes were already widespread in western Gondwana by the beginning of the Permian with both fully terrestrial and specialized aquatic forms.
Simposio IV: Icnología: su aporte en interpretaciones paleoecológicas y paleobiológicas
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
Paleontología
Tracking tetrapod diversification
Paleozoic
Western Gondwana
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/16666

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spelling Tracking tetrapod diversification during the Paleozoic in western GondwanaMarsicano, Claudia A.Ottone, Eduardo GuillermoMancuso, Adriana CeciliaCiencias NaturalesPaleontologíaTracking tetrapod diversificationPaleozoicWestern GondwanaThe oldest record of amniotes in Gondwana corresponds to the Artinskian (Cisuralian) mesosaurids, an endemic group of aquatic "parareptiles" only known from western Gondwana. It is not until the Wordian-Capitanian (Guadalupian) that fairly diverse amniote faunas are known from southern Africa. During the Paleozoic, the record of non-amniotes tetrapods is even more erratic. Particularly in western Gondwana, they are known from Pennsylvanian temnospondyl footprints from Chile and only since the Lopingian rich temnospondyl faunas are well known from several Gondwanan basins. In the last years, levels containing tetrapod footprints have been described from putative Cisuralian-Guadalupian beds of Argentina (La Rioja and La Pampa provinces). These records show the presence of different groups of tetrapods, mostly represented by small individuals, and have been assigned to both amniote and temnospondyl trackmakers. Also from Permian levels but in southern Mendoza (San Rafael), several tetrapod footprints and trackways have been recently re-evaluated. They revealed a rather diverse amniote fauna, which includes small-to-medium sized animals, developed in a desert environment. The importance of this record has been recently reinforced as the bearing levels were assigned to the Artinskian, the same age of the mesosauridbearing levels. This new scenario has important implications for understanding the patterns of diversification of the Gondwanan tetrapod faunas during the Paleozoic as it would imply that amniotes were already widespread in western Gondwana by the beginning of the Permian with both fully terrestrial and specialized aquatic forms.Simposio IV: Icnología: su aporte en interpretaciones paleoecológicas y paleobiológicasFacultad de Ciencias Naturales y Museo2010info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionResumenhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/16666enginfo:eu-repo/semantics/altIdentifier/isbn/978-987-95849-7-2info:eu-repo/semantics/reference/hdl/10915/25738info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T10:52:58Zoai:sedici.unlp.edu.ar:10915/16666Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 10:52:58.463SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Tracking tetrapod diversification during the Paleozoic in western Gondwana
title Tracking tetrapod diversification during the Paleozoic in western Gondwana
spellingShingle Tracking tetrapod diversification during the Paleozoic in western Gondwana
Marsicano, Claudia A.
Ciencias Naturales
Paleontología
Tracking tetrapod diversification
Paleozoic
Western Gondwana
title_short Tracking tetrapod diversification during the Paleozoic in western Gondwana
title_full Tracking tetrapod diversification during the Paleozoic in western Gondwana
title_fullStr Tracking tetrapod diversification during the Paleozoic in western Gondwana
title_full_unstemmed Tracking tetrapod diversification during the Paleozoic in western Gondwana
title_sort Tracking tetrapod diversification during the Paleozoic in western Gondwana
dc.creator.none.fl_str_mv Marsicano, Claudia A.
Ottone, Eduardo Guillermo
Mancuso, Adriana Cecilia
author Marsicano, Claudia A.
author_facet Marsicano, Claudia A.
Ottone, Eduardo Guillermo
Mancuso, Adriana Cecilia
author_role author
author2 Ottone, Eduardo Guillermo
Mancuso, Adriana Cecilia
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Naturales
Paleontología
Tracking tetrapod diversification
Paleozoic
Western Gondwana
topic Ciencias Naturales
Paleontología
Tracking tetrapod diversification
Paleozoic
Western Gondwana
dc.description.none.fl_txt_mv The oldest record of amniotes in Gondwana corresponds to the Artinskian (Cisuralian) mesosaurids, an endemic group of aquatic "parareptiles" only known from western Gondwana. It is not until the Wordian-Capitanian (Guadalupian) that fairly diverse amniote faunas are known from southern Africa. During the Paleozoic, the record of non-amniotes tetrapods is even more erratic. Particularly in western Gondwana, they are known from Pennsylvanian temnospondyl footprints from Chile and only since the Lopingian rich temnospondyl faunas are well known from several Gondwanan basins. In the last years, levels containing tetrapod footprints have been described from putative Cisuralian-Guadalupian beds of Argentina (La Rioja and La Pampa provinces). These records show the presence of different groups of tetrapods, mostly represented by small individuals, and have been assigned to both amniote and temnospondyl trackmakers. Also from Permian levels but in southern Mendoza (San Rafael), several tetrapod footprints and trackways have been recently re-evaluated. They revealed a rather diverse amniote fauna, which includes small-to-medium sized animals, developed in a desert environment. The importance of this record has been recently reinforced as the bearing levels were assigned to the Artinskian, the same age of the mesosauridbearing levels. This new scenario has important implications for understanding the patterns of diversification of the Gondwanan tetrapod faunas during the Paleozoic as it would imply that amniotes were already widespread in western Gondwana by the beginning of the Permian with both fully terrestrial and specialized aquatic forms.
Simposio IV: Icnología: su aporte en interpretaciones paleoecológicas y paleobiológicas
Facultad de Ciencias Naturales y Museo
description The oldest record of amniotes in Gondwana corresponds to the Artinskian (Cisuralian) mesosaurids, an endemic group of aquatic "parareptiles" only known from western Gondwana. It is not until the Wordian-Capitanian (Guadalupian) that fairly diverse amniote faunas are known from southern Africa. During the Paleozoic, the record of non-amniotes tetrapods is even more erratic. Particularly in western Gondwana, they are known from Pennsylvanian temnospondyl footprints from Chile and only since the Lopingian rich temnospondyl faunas are well known from several Gondwanan basins. In the last years, levels containing tetrapod footprints have been described from putative Cisuralian-Guadalupian beds of Argentina (La Rioja and La Pampa provinces). These records show the presence of different groups of tetrapods, mostly represented by small individuals, and have been assigned to both amniote and temnospondyl trackmakers. Also from Permian levels but in southern Mendoza (San Rafael), several tetrapod footprints and trackways have been recently re-evaluated. They revealed a rather diverse amniote fauna, which includes small-to-medium sized animals, developed in a desert environment. The importance of this record has been recently reinforced as the bearing levels were assigned to the Artinskian, the same age of the mesosauridbearing levels. This new scenario has important implications for understanding the patterns of diversification of the Gondwanan tetrapod faunas during the Paleozoic as it would imply that amniotes were already widespread in western Gondwana by the beginning of the Permian with both fully terrestrial and specialized aquatic forms.
publishDate 2010
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