CINGULATES (MAMMALIA, XENARTHRA) OF THE SANTA CRUZ FORMATION (EARLY–MIDDLE MIOCENE) FROM THE RÍO SANTA CRUZ, ARGENTINE PATAGONIA

In 1887 Carlos Ameghino carried out the earliest extensive exploration of the fossiliferous localities along the Río Santa Cruz (Patagonia). His brother Florentino erected more than 100 vertebrate species based on the remains that Carlos recovered. The faunal assemblage eventually came to be recogn...

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Main Authors: Juan Carlos Fernicola, Sergio Fabian Vizcaíno
Format: Article
Language:English
Published: Asociación Paleontológica Argentina 2019-12-01
Series:Publicación Electrónica de la Asociación Paleontológica Argentina
Subjects:
Online Access:https://www.peapaleontologica.org.ar/index.php/peapa/article/view/291
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author Juan Carlos Fernicola
Sergio Fabian Vizcaíno
author_facet Juan Carlos Fernicola
Sergio Fabian Vizcaíno
author_sort Juan Carlos Fernicola
collection DOAJ
description In 1887 Carlos Ameghino carried out the earliest extensive exploration of the fossiliferous localities along the Río Santa Cruz (Patagonia). His brother Florentino erected more than 100 vertebrate species based on the remains that Carlos recovered. The faunal assemblage eventually came to be recognized as the Santacrucian South American Land Mammal Age (Early–Middle Miocene). Over the past several years, an interdisciplinary group from the Museo de La Plata, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” (Argentina), and Duke University (USA) revisited the Río Santa Cruz localities, including Barrancas Blancas, Segundas Barrancas Blancas, and Yaten Huageno. This contribution presents a taxonomic list of cingulates based on the abundant material recovered during these expeditions. In Barrancas Blancas, we recorded the armadillos Peltephilus pumilus Ameghino, Stenotatus patagonicus Ameghino, Proeutatus oenophorus Ameghino, Prozaedyus proximus Ameghino, and Stegotherium tessellatum Ameghino, and the glyptodonts Cochlops muricatus Ameghino and Eucinepeltus sp. Ameghino. We did not record St. tessellatum in Segundas Barrancas Blancas and St. tessellatum, P. pumilus and Eucinepeltus sp. in Yaten Huageno. The comparative analysis between the faunal composition of the Santa Cruz Formation in the Río Santa Cruz and other areas to the west and the east reveals minor differences that, preliminarily, suggest environmental differences between the analyzed regions.
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spelling doaj.art-b0b3b5077c5d4b91bb36391bfe3645692022-12-21T23:14:44ZengAsociación Paleontológica ArgentinaPublicación Electrónica de la Asociación Paleontológica Argentina2469-02282019-12-01192CINGULATES (MAMMALIA, XENARTHRA) OF THE SANTA CRUZ FORMATION (EARLY–MIDDLE MIOCENE) FROM THE RÍO SANTA CRUZ, ARGENTINE PATAGONIAJuan Carlos Fernicola0Sergio Fabian Vizcaíno1CONICET |Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”, CABA, Argentina | Universidad Nacional de Luján, Luján, Buenos Aires, ArgentinaCONICET - Facultad de Ciencias Naturales y Museo de La Plata, La Plata, ArgentinaIn 1887 Carlos Ameghino carried out the earliest extensive exploration of the fossiliferous localities along the Río Santa Cruz (Patagonia). His brother Florentino erected more than 100 vertebrate species based on the remains that Carlos recovered. The faunal assemblage eventually came to be recognized as the Santacrucian South American Land Mammal Age (Early–Middle Miocene). Over the past several years, an interdisciplinary group from the Museo de La Plata, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” (Argentina), and Duke University (USA) revisited the Río Santa Cruz localities, including Barrancas Blancas, Segundas Barrancas Blancas, and Yaten Huageno. This contribution presents a taxonomic list of cingulates based on the abundant material recovered during these expeditions. In Barrancas Blancas, we recorded the armadillos Peltephilus pumilus Ameghino, Stenotatus patagonicus Ameghino, Proeutatus oenophorus Ameghino, Prozaedyus proximus Ameghino, and Stegotherium tessellatum Ameghino, and the glyptodonts Cochlops muricatus Ameghino and Eucinepeltus sp. Ameghino. We did not record St. tessellatum in Segundas Barrancas Blancas and St. tessellatum, P. pumilus and Eucinepeltus sp. in Yaten Huageno. The comparative analysis between the faunal composition of the Santa Cruz Formation in the Río Santa Cruz and other areas to the west and the east reveals minor differences that, preliminarily, suggest environmental differences between the analyzed regions.https://www.peapaleontologica.org.ar/index.php/peapa/article/view/291SantacrucianArmadillosGlyptodontsTaxonomy.Carlos and Florentino Ameghino
spellingShingle Juan Carlos Fernicola
Sergio Fabian Vizcaíno
CINGULATES (MAMMALIA, XENARTHRA) OF THE SANTA CRUZ FORMATION (EARLY–MIDDLE MIOCENE) FROM THE RÍO SANTA CRUZ, ARGENTINE PATAGONIA
Publicación Electrónica de la Asociación Paleontológica Argentina
Santacrucian
Armadillos
Glyptodonts
Taxonomy.
Carlos and Florentino Ameghino
title CINGULATES (MAMMALIA, XENARTHRA) OF THE SANTA CRUZ FORMATION (EARLY–MIDDLE MIOCENE) FROM THE RÍO SANTA CRUZ, ARGENTINE PATAGONIA
title_full CINGULATES (MAMMALIA, XENARTHRA) OF THE SANTA CRUZ FORMATION (EARLY–MIDDLE MIOCENE) FROM THE RÍO SANTA CRUZ, ARGENTINE PATAGONIA
title_fullStr CINGULATES (MAMMALIA, XENARTHRA) OF THE SANTA CRUZ FORMATION (EARLY–MIDDLE MIOCENE) FROM THE RÍO SANTA CRUZ, ARGENTINE PATAGONIA
title_full_unstemmed CINGULATES (MAMMALIA, XENARTHRA) OF THE SANTA CRUZ FORMATION (EARLY–MIDDLE MIOCENE) FROM THE RÍO SANTA CRUZ, ARGENTINE PATAGONIA
title_short CINGULATES (MAMMALIA, XENARTHRA) OF THE SANTA CRUZ FORMATION (EARLY–MIDDLE MIOCENE) FROM THE RÍO SANTA CRUZ, ARGENTINE PATAGONIA
title_sort cingulates mammalia xenarthra of the santa cruz formation early middle miocene from the rio santa cruz argentine patagonia
topic Santacrucian
Armadillos
Glyptodonts
Taxonomy.
Carlos and Florentino Ameghino
url https://www.peapaleontologica.org.ar/index.php/peapa/article/view/291
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