Advances in the knowledge of the macroflora of the Tuzancoa Formation, Hidalgo, Mexico, lower Permian

The paleoflora of the Tuzancoa Formation has been studied since the middle of the last century. However, the constant discovery of new floristic elements and/or localities makes it necessary to re-evaluate the current knowledge of the paleoflora of this formation. Therefore, the objective of this wo...

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Autores: Flores-Barragan, Miguel Angel, Velasco-de León, María Patricia, Moreno-Bedmar, Josep Anton
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:México
Recursos:UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO
Repositorio:Revista Mexicana de Ciencias Geológicas
Idioma:español
OAI Identifier:oai:ojs.rmcg.geociencias.unam.mx:article/1694
Acesso em linha:http://rmcg.geociencias.unam.mx/index.php/rmcg/article/view/1694
Access Level:acceso abierto
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dc.title.none.fl_str_mv Advances in the knowledge of the macroflora of the Tuzancoa Formation, Hidalgo, Mexico, lower Permian
Avances en el conocimiento de la macroflora de la Formación Tuzancoa, Hidalgo, México, Pérmico inferior
title Advances in the knowledge of the macroflora of the Tuzancoa Formation, Hidalgo, Mexico, lower Permian
spellingShingle Advances in the knowledge of the macroflora of the Tuzancoa Formation, Hidalgo, Mexico, lower Permian
Flores-Barragan, Miguel Angel
title_short Advances in the knowledge of the macroflora of the Tuzancoa Formation, Hidalgo, Mexico, lower Permian
title_full Advances in the knowledge of the macroflora of the Tuzancoa Formation, Hidalgo, Mexico, lower Permian
title_fullStr Advances in the knowledge of the macroflora of the Tuzancoa Formation, Hidalgo, Mexico, lower Permian
title_full_unstemmed Advances in the knowledge of the macroflora of the Tuzancoa Formation, Hidalgo, Mexico, lower Permian
title_sort Advances in the knowledge of the macroflora of the Tuzancoa Formation, Hidalgo, Mexico, lower Permian
dc.creator.none.fl_str_mv Flores-Barragan, Miguel Angel
Velasco-de León, María Patricia
Moreno-Bedmar, Josep Anton
author Flores-Barragan, Miguel Angel
author_facet Flores-Barragan, Miguel Angel
Velasco-de León, María Patricia
Moreno-Bedmar, Josep Anton
author_role author
author2 Velasco-de León, María Patricia
Moreno-Bedmar, Josep Anton
author2_role author
author
description The paleoflora of the Tuzancoa Formation has been studied since the middle of the last century. However, the constant discovery of new floristic elements and/or localities makes it necessary to re-evaluate the current knowledge of the paleoflora of this formation. Therefore, the objective of this work is to present new paleofloristic reports of three localities of the Tuzancoa Formation, as well as to analyze their geographical and chronological distribution and their relationship with other contemporary floras of Mexico. The localities studied are named Calnali 2, La Virgen, and San Mateo 2, the latter being a new locality. In the first locality, six orders were identified (Equisetales, Glossopteridales, Lepidodendrales, Marattiales, Peltaspermales and Voltziales), while in The Virgin and San Mateo 2, four orders were identified (Equisetales, Lepidodendrales, Marattiales, and Peltaspermales). The new reports correspond to one family, two affinities, five genera, and seven species; of this set, five taxa stand out as new reports for the Mexican Republic and/or as taxonomically important, and these correspond to Majonicaceae, Odontopteris cf. Brardii, Mariopteris, Taeniopteris feddeni and T. tenuis. Majonicaceae is represented by a female reproductive structure probably related to the species Calnalia hidalguensis; Odontopteris cf. Brardii is a fern characterized by the absence of a middle vein in its pinnules; Mariopteris is a fern with pinnules with varying degrees of fusion; Taeniopteris feddeni corresponds to a large entire leaf, more than five cm wide with a density of 20 to 22 secondary veins per cm; finally, Taeniopteris tenuis is an entire leaf less than 5 cm wide that presents a unique arrangement in its secondary venation with a density of 28 to 30 veins per cm. These new findings substantially increase the floristic diversity of the formation and allow to establish, together with lithology, a transitional environment in Calnali 2 and a continental environment in La Virgen and San Mateo 2. The stratigraphic and distribution ranges of the taxa, suggest an age for the plant-carrying strata of the Pennsylvanian–lower Permian; in addition, an inferred geographical affinity with the Euromerican kingdom is considered. Finally, when comparing the floristic list of the Tuzancoa Formation with other contemporary units with reports of fossil flora such as Matzitzi (Mt), Paso Hondo (Ph), Olinalá (Ol) and Patlanoaya (Pt), a minimal similarity is observed for the latter (Po, Ol and Pt) due to the poor records in relation to the Tuzancoa Fm. Regarding the Matzitzi Formation, in this case the plants indicate characteristics of different environments: Continental and humid for Matzitzi, and transitional in the locality of Calnali of the Tezuncoa Formation, while in the locality of the Virgin and San Mateo the environment is sub-humid. All these new contributions help us to better understand the terrestrial ecosystems of the late Paleozoic in the western equatorial margin of Euromerica.
publishDate 2023
dc.date.none.fl_str_mv 2023-03-31
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info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://rmcg.geociencias.unam.mx/index.php/rmcg/article/view/1694
10.22201/cgeo.20072902e.2023.1.1694
url http://rmcg.geociencias.unam.mx/index.php/rmcg/article/view/1694
identifier_str_mv 10.22201/cgeo.20072902e.2023.1.1694
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv http://rmcg.geociencias.unam.mx/index.php/rmcg/article/view/1694/1486
dc.rights.none.fl_str_mv Copyright (c) 2023 Revista Mexicana de Ciencias Geológicas
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2023 Revista Mexicana de Ciencias Geológicas
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dc.publisher.none.fl_str_mv Universidad Nacional Autónoma de México
publisher.none.fl_str_mv Universidad Nacional Autónoma de México
dc.source.none.fl_str_mv Revista Mexicana de Ciencias Geológicas; Vol 40 No 1 (2023); 1-15
Revista Mexicana de Ciencias Geológicas; Vol 40 No 1 (2023); 1-15
2007-2902
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10.22201/cgeo.20072902e.2023.1
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spelling Advances in the knowledge of the macroflora of the Tuzancoa Formation, Hidalgo, Mexico, lower PermianAvances en el conocimiento de la macroflora de la Formación Tuzancoa, Hidalgo, México, Pérmico inferiorFlores-Barragan, Miguel AngelVelasco-de León, María PatriciaMoreno-Bedmar, Josep AntonThe paleoflora of the Tuzancoa Formation has been studied since the middle of the last century. However, the constant discovery of new floristic elements and/or localities makes it necessary to re-evaluate the current knowledge of the paleoflora of this formation. Therefore, the objective of this work is to present new paleofloristic reports of three localities of the Tuzancoa Formation, as well as to analyze their geographical and chronological distribution and their relationship with other contemporary floras of Mexico. The localities studied are named Calnali 2, La Virgen, and San Mateo 2, the latter being a new locality. In the first locality, six orders were identified (Equisetales, Glossopteridales, Lepidodendrales, Marattiales, Peltaspermales and Voltziales), while in The Virgin and San Mateo 2, four orders were identified (Equisetales, Lepidodendrales, Marattiales, and Peltaspermales). The new reports correspond to one family, two affinities, five genera, and seven species; of this set, five taxa stand out as new reports for the Mexican Republic and/or as taxonomically important, and these correspond to Majonicaceae, Odontopteris cf. Brardii, Mariopteris, Taeniopteris feddeni and T. tenuis. Majonicaceae is represented by a female reproductive structure probably related to the species Calnalia hidalguensis; Odontopteris cf. Brardii is a fern characterized by the absence of a middle vein in its pinnules; Mariopteris is a fern with pinnules with varying degrees of fusion; Taeniopteris feddeni corresponds to a large entire leaf, more than five cm wide with a density of 20 to 22 secondary veins per cm; finally, Taeniopteris tenuis is an entire leaf less than 5 cm wide that presents a unique arrangement in its secondary venation with a density of 28 to 30 veins per cm. These new findings substantially increase the floristic diversity of the formation and allow to establish, together with lithology, a transitional environment in Calnali 2 and a continental environment in La Virgen and San Mateo 2. The stratigraphic and distribution ranges of the taxa, suggest an age for the plant-carrying strata of the Pennsylvanian–lower Permian; in addition, an inferred geographical affinity with the Euromerican kingdom is considered. Finally, when comparing the floristic list of the Tuzancoa Formation with other contemporary units with reports of fossil flora such as Matzitzi (Mt), Paso Hondo (Ph), Olinalá (Ol) and Patlanoaya (Pt), a minimal similarity is observed for the latter (Po, Ol and Pt) due to the poor records in relation to the Tuzancoa Fm. Regarding the Matzitzi Formation, in this case the plants indicate characteristics of different environments: Continental and humid for Matzitzi, and transitional in the locality of Calnali of the Tezuncoa Formation, while in the locality of the Virgin and San Mateo the environment is sub-humid. All these new contributions help us to better understand the terrestrial ecosystems of the late Paleozoic in the western equatorial margin of Euromerica.La paleoflora de la Formación Tuzancoa ha sido estudiada desde mediados del siglo pasado. Sin embargo, el constante descubrimiento de nuevos elementos florísticos y/o localidades hace necesaria una reevaluación del conocimiento actual de la paleoflora de esta formación. El objetivo de este trabajo es dar a conocer los nuevos reportes paleoflorísticos de tres localidades de la Formación Tuzancoa, así como analizar su distribución geográfica, cronológica y su relación con otras floras coetáneas de México. Las localidades aquí estudiadas se denominan Calnali 2, La Virgen y San Mateo 2, siendo esta última una nueva localidad. En la primera localidad se identificaron seis órdenes (Equisetales, Glossopteridales, Lepidodendrales, Marattiales, Peltaspermales y Voltziales). Mientras que en La Virgen y San Mateo 2 se identificaron cuatro órdenes (Equisetales, Lepidodendrales, Marattiales, y Peltaspermales). Los nuevos reportes corresponden a una familia, dos afinidades, cinco géneros y siete especies; de este conjunto, destacan cinco taxones que son nuevos reportes para la República Mexicana y/o importantes taxonómicamente y estos corresponden a: Majonicaceae, Odontopteris cf. brardii, Mariopteris, Taeniopteris feddeni y T. tenuis. Majonicaceae es representada por una estructura reproductora femenina probablemente relacionada con la especie Calnalia hidalguensis; Odontopteris cf. brardii es un helecho que se caracteriza por la ausencia de una vena media en sus pínnulas; Mariopteris es un helecho con pínnulas con distintos grados de fusión; Taeniopteris feddeni corresponde a una hoja entera de gran tamaño, con más de cinco cm de ancho, con una densidad de 20 a 22 venas secundarias por cm; y por último, Taeniopteris tenuis es un hoja entera con menos de cinco cm de ancho que presenta un arreglo único en su venación secundaria, con una densidad de 28 a 30 venas por cm. Estos nuevos hallazgos aumentan sustancialmente la diversidad florística de la formación y permiten establecer, junto con la litología, un ambiente transicional en Calnali 2 y un ambiente continental en La Virgen y San Mateo 2. Los rangos estratigráficos y de distribución de los taxones sugieren una edad de Pensilvánico–Pérmico inferior para los estratos portadores de plantas, además se infiere una posible afinidad geográfica con el reino Euroamericano. Por último, al comparar el listado florístico de la Formación Tuzancoa con otras unidades coetáneas con reportes de flora fósil como son las formaciones Matzitzi (Mt), Paso Hondo (Ph), Olinalá (Ol) y el Grupo Patlanoaya (Pt) se tiene que, en estas últimas (Ph, Ol y Pt) se observa una similitud mínima debido al pobre registro en relación con la Formación Tuzancoa. Con respecto a la Formación Matzitzi, las plantas indican características propias de ambientes diferentes: continental para Matzitzi y de transición-continental para Tuzancoa. Todos estos nuevos aportes nos ayudan a comprender mejor los ecosistemas terrestres de finales del Paleozoico en el margen ecuatorial occidental de Euroamérica.Universidad Nacional Autónoma de México2023-03-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://rmcg.geociencias.unam.mx/index.php/rmcg/article/view/169410.22201/cgeo.20072902e.2023.1.1694Revista Mexicana de Ciencias Geológicas; Vol 40 No 1 (2023); 1-15Revista Mexicana de Ciencias Geológicas; Vol 40 No 1 (2023); 1-152007-29021026-877410.22201/cgeo.20072902e.2023.1reponame:Revista Mexicana de Ciencias Geológicasinstname:UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICOinstacron:UNAMspahttp://rmcg.geociencias.unam.mx/index.php/rmcg/article/view/1694/1486Copyright (c) 2023 Revista Mexicana de Ciencias Geológicashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessoai:ojs.rmcg.geociencias.unam.mx:article/16942024-08-16T19:51:54Z
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