Distribution patterns of Megatheriidae ground sloths during the late Cenozoic: Biogeografía de Perezosos Megaterinos en el Cenozoico

The Megatheriidae sloths (Mammalia, Xenarthra) are a clade of Folivora with a broad latitudinal and altitudinal distribution. Records extend from Argentina to the United States during the early Miocene to the late Pleistocene (approximately 15.97 Ma - 11 Ka). It comprises two subfamilies, Planopinae...

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Autores principales: Roig, Marcos Gabriel, Florentín, Javier Elías, Miño-Boilini, Ángel Ramón
Formato: Artículo revista
Lenguaje:Español
Publicado: Facultad de Ciencias Exactas y Naturales y Agrimensura 2024
Materias:
Folivora
Mammalia
Megatheriidae
Panbiogeography
Panbiogeografía
Acceso en línea:https://revistas.unne.edu.ar/index.php/fce/article/view/7467
Aporte de:
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) de Universidad Nacional del Nordeste
id I48-R154-article-7467
record_format ojs
spelling I48-R154-article-74672024-12-26T15:01:22Z Distribution patterns of Megatheriidae ground sloths during the late Cenozoic: Biogeografía de Perezosos Megaterinos en el Cenozoico Patrones de distribución de los perezosos terrestres Megatheriidae durante el cenozoico tardío: Biogeografía de Perezosos Megaterinos en el Cenozoico Roig, Marcos Gabriel Florentín, Javier Elías Miño-Boilini, Ángel Ramón Folivora Mammalia Megatheriidae Panbiogeography Folivora Mammalia Megatheriidae Panbiogeografía The Megatheriidae sloths (Mammalia, Xenarthra) are a clade of Folivora with a broad latitudinal and altitudinal distribution. Records extend from Argentina to the United States during the early Miocene to the late Pleistocene (approximately 15.97 Ma - 11 Ka). It comprises two subfamilies, Planopinae endemic to South America and Megatheriinae with a broad record in the Americas. The main objective of this work was to analyze the distribution patterns of Megatheriidae via a panbiogeographic analysis. This method emphasizes the importance of the spatial dimension of biodiversity to generate a more adequate understanding of evolutionary patterns and processes. The software Croizat Reloaded version 1.3.0 (Quantitative Analysis in Panbiogeography) was used for this purpose. The results yielded three generalized tracks (GT) and a panbiogeographic node. GT A corresponds to the subfamily Planopinae, while GT B and GT C correspond to the subfamily Megatheriinae. Subsequently, contact zones between the ancestral biotas of Planopinae and Megatheriinae were established, and it was concluded that Megatheriidae is a clade whose distribution was intimately linked to climatic and geological phenomena that affected the continent between the Miocene and the Pleistocene. These events would have had a vicariant event, separating ancestral populations of megatherians into two subfamilies with evolutionary histories that differ in their latitudinal and altitudinal distribution. Los perezosos Megatheriidae (Mammalia, Xenarthra) son un clado de Folivora de amplia distribución latitudinal y altitudinal, los registros se extienden desde Argentina hasta Estados Unidos durante el Mioceno temprano al Pleistoceno tardío (ca. 15,97 Ma - 11Ka). Comprende dos subfamilias, Planopinae endémicos de América del Sur y Megatheriinae de amplio registro en las américas. El principal objetivo de este trabajo fue analizar los patrones de distribución de los Megatheriidae mediante un análisis panbiogeográfico; esta metodología enfatiza la importancia de la dimensión espacial de la biodiversidad para generar una comprensión más adecuada de los patrones y procesos evolutivos. Para ello se utilizó el software Croizat Reloaded versión 1.3.0. (Quantitative Analysis in Panbiogeography); como resultados se obtuvieron tres trazos generalizados (TG) y un nodo panbiogeográfico. El TG A corresponde a la subfamilia Planopinae, mientras que los TG B y TG C responden a la subfamilia Megatheriinae. Posteriormente, se establecieron zonas de contacto entre las biotas ancestrales de Planopinae y Megatheriinae y se concluyó que los Megatheriidae son un clado cuya distribución estuvo íntimamente ligada a los fenómenos climáticos y geológicos que afectaron el continente entre el Mioceno y el Pleistoceno. Dichos eventos habrían tenido un carácter vicariante, separando a las poblaciones ancestrales de megaterinos en dos subfamilias con caminos evolutivos que difieren en su distribución latitudinal y en altitud. Facultad de Ciencias Exactas y Naturales y Agrimensura 2024-11-20 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unne.edu.ar/index.php/fce/article/view/7467 10.30972/fac.3427467 FACENA; Vol. 34 Núm. 2 (2024); 229-248 1851-507X 0325-4216 spa https://revistas.unne.edu.ar/index.php/fce/article/view/7467/7426
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-154
container_title_str Revistas UNNE - Universidad Nacional del Noroeste (UNNE)
language Español
format Artículo revista
topic Folivora
Mammalia
Megatheriidae
Panbiogeography
Folivora
Mammalia
Megatheriidae
Panbiogeografía
spellingShingle Folivora
Mammalia
Megatheriidae
Panbiogeography
Folivora
Mammalia
Megatheriidae
Panbiogeografía
Roig, Marcos Gabriel
Florentín, Javier Elías
Miño-Boilini, Ángel Ramón
Distribution patterns of Megatheriidae ground sloths during the late Cenozoic: Biogeografía de Perezosos Megaterinos en el Cenozoico
topic_facet Folivora
Mammalia
Megatheriidae
Panbiogeography
Folivora
Mammalia
Megatheriidae
Panbiogeografía
author Roig, Marcos Gabriel
Florentín, Javier Elías
Miño-Boilini, Ángel Ramón
author_facet Roig, Marcos Gabriel
Florentín, Javier Elías
Miño-Boilini, Ángel Ramón
author_sort Roig, Marcos Gabriel
title Distribution patterns of Megatheriidae ground sloths during the late Cenozoic: Biogeografía de Perezosos Megaterinos en el Cenozoico
title_short Distribution patterns of Megatheriidae ground sloths during the late Cenozoic: Biogeografía de Perezosos Megaterinos en el Cenozoico
title_full Distribution patterns of Megatheriidae ground sloths during the late Cenozoic: Biogeografía de Perezosos Megaterinos en el Cenozoico
title_fullStr Distribution patterns of Megatheriidae ground sloths during the late Cenozoic: Biogeografía de Perezosos Megaterinos en el Cenozoico
title_full_unstemmed Distribution patterns of Megatheriidae ground sloths during the late Cenozoic: Biogeografía de Perezosos Megaterinos en el Cenozoico
title_sort distribution patterns of megatheriidae ground sloths during the late cenozoic: biogeografía de perezosos megaterinos en el cenozoico
description The Megatheriidae sloths (Mammalia, Xenarthra) are a clade of Folivora with a broad latitudinal and altitudinal distribution. Records extend from Argentina to the United States during the early Miocene to the late Pleistocene (approximately 15.97 Ma - 11 Ka). It comprises two subfamilies, Planopinae endemic to South America and Megatheriinae with a broad record in the Americas. The main objective of this work was to analyze the distribution patterns of Megatheriidae via a panbiogeographic analysis. This method emphasizes the importance of the spatial dimension of biodiversity to generate a more adequate understanding of evolutionary patterns and processes. The software Croizat Reloaded version 1.3.0 (Quantitative Analysis in Panbiogeography) was used for this purpose. The results yielded three generalized tracks (GT) and a panbiogeographic node. GT A corresponds to the subfamily Planopinae, while GT B and GT C correspond to the subfamily Megatheriinae. Subsequently, contact zones between the ancestral biotas of Planopinae and Megatheriinae were established, and it was concluded that Megatheriidae is a clade whose distribution was intimately linked to climatic and geological phenomena that affected the continent between the Miocene and the Pleistocene. These events would have had a vicariant event, separating ancestral populations of megatherians into two subfamilies with evolutionary histories that differ in their latitudinal and altitudinal distribution.
publisher Facultad de Ciencias Exactas y Naturales y Agrimensura
publishDate 2024
url https://revistas.unne.edu.ar/index.php/fce/article/view/7467
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