Buckya austroamericana nov. gen. et sp. (Bennettitales) from the upper triassic Laguna Colorada formation (El Tranquilo Group), Santa Cruz province, Argentina

Siraty, a new fossiliferous locality with woods and stipes of the Tacuary Formation (upper Permian), Paraguay. Silicified fossil woods and arborescent stems from Siraty, a new fossiliferous locality of the Tacuary Formation (upper Permian), Paraguay, are described. The fern stipe Tuvichapteris solms...

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Autores principales: Herbst, Rafael, Crisafulli, Alexandra María Cristina
Formato: Artículo
Lenguaje:Español
Publicado: Universidad Nacional de Tucumán. Instituto Superior de Correlación Geológica 2021
Materias:
Woods
Permian
Siraty
Tacuary formation
Paraguay
Maderas
Pérmico
Formación tacuary
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/27926
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-27926
record_format dspace
spelling I48-R184-123456789-279262025-03-06T10:59:25Z Buckya austroamericana nov. gen. et sp. (Bennettitales) from the upper triassic Laguna Colorada formation (El Tranquilo Group), Santa Cruz province, Argentina Herbst, Rafael Crisafulli, Alexandra María Cristina Woods Permian Siraty Tacuary formation Paraguay Maderas Pérmico Formación tacuary Siraty, a new fossiliferous locality with woods and stipes of the Tacuary Formation (upper Permian), Paraguay. Silicified fossil woods and arborescent stems from Siraty, a new fossiliferous locality of the Tacuary Formation (upper Permian), Paraguay, are described. The fern stipe Tuvichapteris solmsi Herbst (Marattiales), and the following taxa of Pinales Zalesskioxylon uniseriatum Pant & Singh, Agathoxylon ningahense (Maheshwari) Crisafulli & Herbst and Podocarpoxylon indicum (Bhardwaj) Bose & Maheshwari were identified. The assemblage adds to the paleoxylofloristic knowledge of this formation and allows paleobotanical, and paleoecological considerations. These woods grew in a mesophytic-mesoxerophytic forest similar to other coeval formations. Growth rings type “0” (Creber & Chaloner) suggest a paleoenviroment in which moisture and temperature requirements were optimal for growth, without marked seasonality. From the evolutionary point of view, low rays and mixed type pits were identified, with abietinoid trend. The Permian age is confirmed by the typical Neopaleozoic anatomical characters of the found taxa. Se describen maderas y estípites silicificados provenientes de Siraty, una nueva localidad fosilífera de la Formación Tacuary (Pérmico superior), Paraguay. Se identificó Tuvichapteris solmsi Herbst (Marattiales) y los siguientes taxones de Pinales: Zalesskioxylon uniseriatum Pant & Singh, Agathoxylon ningahense (Maheshwari) Crisafulli & Herbst y Podocarpoxylon indicum (Bhardwaj) Bose & Maheshwari. La asociación de leños identificada enriquece el conocimiento paleoxiloflorístico de esta Formación y asimismo permite realizar consideraciones paleobotánicas y paleoecológicas. Estas maderas crecieron en un bosque mesofítico–mesoxerofítico semejante al de otras formaciones coetáneas. Los anillos de crecimiento tipo “0” (Creber & Chaloner), sugieren un paleoambiente en la cual los requerimientos de humedad y temperatura eran óptimos para su crecimiento, sin marcadas estacionalidades. Desde el punto de vista evolutivo, se identificaron radios leñosos bajos y punteaduras espaciadas con tendencia abietinoides. La edad pérmica se confirma por los caracteres anatómicos típicos neopaleozoicos de los taxones encontrados. 2021-05-13T15:34:14Z 2021-05-13T15:34:14Z 2016 Artículo Herbst, Rafael y Crisafulli, Alexandra María Cristina, 2016. Buckya austroamericana nov. gen. et sp. (Bennettitales) from the upper triassic Laguna Colorada formation (El Tranquilo Group), Santa Cruz province, Argentina. Serie Correlación Geológica. San Miguel de Tucumán: Universidad Nacional de Tucumán. Instituto Superior de Correlación Geológica, vol. 32, p. 85-100. ISSN 1666-9479. 1514-4186 http://repositorio.unne.edu.ar/handle/123456789/27926 spa openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf Universidad Nacional de Tucumán. Instituto Superior de Correlación Geológica Serie Correlación Geológica, 2016, vol. 32, p. 85-100.
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Español
topic Woods
Permian
Siraty
Tacuary formation
Paraguay
Maderas
Pérmico
Formación tacuary
spellingShingle Woods
Permian
Siraty
Tacuary formation
Paraguay
Maderas
Pérmico
Formación tacuary
Herbst, Rafael
Crisafulli, Alexandra María Cristina
Buckya austroamericana nov. gen. et sp. (Bennettitales) from the upper triassic Laguna Colorada formation (El Tranquilo Group), Santa Cruz province, Argentina
topic_facet Woods
Permian
Siraty
Tacuary formation
Paraguay
Maderas
Pérmico
Formación tacuary
description Siraty, a new fossiliferous locality with woods and stipes of the Tacuary Formation (upper Permian), Paraguay. Silicified fossil woods and arborescent stems from Siraty, a new fossiliferous locality of the Tacuary Formation (upper Permian), Paraguay, are described. The fern stipe Tuvichapteris solmsi Herbst (Marattiales), and the following taxa of Pinales Zalesskioxylon uniseriatum Pant & Singh, Agathoxylon ningahense (Maheshwari) Crisafulli & Herbst and Podocarpoxylon indicum (Bhardwaj) Bose & Maheshwari were identified. The assemblage adds to the paleoxylofloristic knowledge of this formation and allows paleobotanical, and paleoecological considerations. These woods grew in a mesophytic-mesoxerophytic forest similar to other coeval formations. Growth rings type “0” (Creber & Chaloner) suggest a paleoenviroment in which moisture and temperature requirements were optimal for growth, without marked seasonality. From the evolutionary point of view, low rays and mixed type pits were identified, with abietinoid trend. The Permian age is confirmed by the typical Neopaleozoic anatomical characters of the found taxa.
format Artículo
author Herbst, Rafael
Crisafulli, Alexandra María Cristina
author_facet Herbst, Rafael
Crisafulli, Alexandra María Cristina
author_sort Herbst, Rafael
title Buckya austroamericana nov. gen. et sp. (Bennettitales) from the upper triassic Laguna Colorada formation (El Tranquilo Group), Santa Cruz province, Argentina
title_short Buckya austroamericana nov. gen. et sp. (Bennettitales) from the upper triassic Laguna Colorada formation (El Tranquilo Group), Santa Cruz province, Argentina
title_full Buckya austroamericana nov. gen. et sp. (Bennettitales) from the upper triassic Laguna Colorada formation (El Tranquilo Group), Santa Cruz province, Argentina
title_fullStr Buckya austroamericana nov. gen. et sp. (Bennettitales) from the upper triassic Laguna Colorada formation (El Tranquilo Group), Santa Cruz province, Argentina
title_full_unstemmed Buckya austroamericana nov. gen. et sp. (Bennettitales) from the upper triassic Laguna Colorada formation (El Tranquilo Group), Santa Cruz province, Argentina
title_sort buckya austroamericana nov. gen. et sp. (bennettitales) from the upper triassic laguna colorada formation (el tranquilo group), santa cruz province, argentina
publisher Universidad Nacional de Tucumán. Instituto Superior de Correlación Geológica
publishDate 2021
url http://repositorio.unne.edu.ar/handle/123456789/27926
work_keys_str_mv AT herbstrafael buckyaaustroamericananovgenetspbennettitalesfromtheuppertriassiclagunacoloradaformationeltranquilogroupsantacruzprovinceargentina
AT crisafullialexandramariacristina buckyaaustroamericananovgenetspbennettitalesfromtheuppertriassiclagunacoloradaformationeltranquilogroupsantacruzprovinceargentina
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