New toxodontid (Notoungulata) from the Early Miocene of Mendoza, Argentina

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We describe a new toxodontid species, Nesodon taweretus sp. nov., from the Aisol Formation in Mendoza Province, central-west Argentina. Nesodon is a frequently found Toxodontidae, member of the Notoungulata, an extinct endemic group of Cenozoic South American mammals that are ecologically similar to...

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Autor principal:	Naipauer, Maximiliano
Publicado:	2015
Materias:	Cenozoic Early Miocene Nesodon South America U–Pb (CA-ID-TIMS) tuff age
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00310220_v89_n3_p611_Forasiepi http://hdl.handle.net/20.500.12110/paper_00310220_v89_n3_p611_Forasiepi
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00310220_v89_n3_p611_Forasiepi
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spelling	paper:paper_00310220_v89_n3_p611_Forasiepi2023-06-08T14:56:49Z New toxodontid (Notoungulata) from the Early Miocene of Mendoza, Argentina Naipauer, Maximiliano Cenozoic Early Miocene Nesodon South America U–Pb (CA-ID-TIMS) tuff age We describe a new toxodontid species, Nesodon taweretus sp. nov., from the Aisol Formation in Mendoza Province, central-west Argentina. Nesodon is a frequently found Toxodontidae, member of the Notoungulata, an extinct endemic group of Cenozoic South American mammals that are ecologically similar to current hoofed ungulates. The holotype of N. taweretus sp. nov. is a skull, and we tentatively assign some mandibular fragments and postcranial bones. N. taweretus sp. nov. differs from the other Nesodon species in several cranial and dental features, and close comparisons were made with the Patagonian Nesodon imbricatus, common in the Santa Cruz Formation (Santacrucian Age, Early Miocene). The material is of a similar size to N.imbricatus, with a body mass estimation of about 550 kg. The phylogenetic analysis groups N. taweretus sp. nov. with other species of Nesodon. The absolute age of the Aisol Formation has been established at ca 19.480 ± 0.025 Ma (Burdigalian; Early Miocene) by means of U–Pb zircon dating. The vertebrate association is encompassed by the Santacrucian Age. Latitudinal separation between Mendoza and Patagonia in the south would have favored taxonomic differences, as reflected in the species of Nesodon. © 2014, Springer-Verlag Berlin Heidelberg. Fil:Naipauer, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00310220_v89_n3_p611_Forasiepi http://hdl.handle.net/20.500.12110/paper_00310220_v89_n3_p611_Forasiepi
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Cenozoic Early Miocene Nesodon South America U–Pb (CA-ID-TIMS) tuff age
spellingShingle	Cenozoic Early Miocene Nesodon South America U–Pb (CA-ID-TIMS) tuff age Naipauer, Maximiliano New toxodontid (Notoungulata) from the Early Miocene of Mendoza, Argentina
topic_facet	Cenozoic Early Miocene Nesodon South America U–Pb (CA-ID-TIMS) tuff age
description	We describe a new toxodontid species, Nesodon taweretus sp. nov., from the Aisol Formation in Mendoza Province, central-west Argentina. Nesodon is a frequently found Toxodontidae, member of the Notoungulata, an extinct endemic group of Cenozoic South American mammals that are ecologically similar to current hoofed ungulates. The holotype of N. taweretus sp. nov. is a skull, and we tentatively assign some mandibular fragments and postcranial bones. N. taweretus sp. nov. differs from the other Nesodon species in several cranial and dental features, and close comparisons were made with the Patagonian Nesodon imbricatus, common in the Santa Cruz Formation (Santacrucian Age, Early Miocene). The material is of a similar size to N.imbricatus, with a body mass estimation of about 550 kg. The phylogenetic analysis groups N. taweretus sp. nov. with other species of Nesodon. The absolute age of the Aisol Formation has been established at ca 19.480 ± 0.025 Ma (Burdigalian; Early Miocene) by means of U–Pb zircon dating. The vertebrate association is encompassed by the Santacrucian Age. Latitudinal separation between Mendoza and Patagonia in the south would have favored taxonomic differences, as reflected in the species of Nesodon. © 2014, Springer-Verlag Berlin Heidelberg.
author	Naipauer, Maximiliano
author_facet	Naipauer, Maximiliano
author_sort	Naipauer, Maximiliano
title	New toxodontid (Notoungulata) from the Early Miocene of Mendoza, Argentina
title_short	New toxodontid (Notoungulata) from the Early Miocene of Mendoza, Argentina
title_full	New toxodontid (Notoungulata) from the Early Miocene of Mendoza, Argentina
title_fullStr	New toxodontid (Notoungulata) from the Early Miocene of Mendoza, Argentina
title_full_unstemmed	New toxodontid (Notoungulata) from the Early Miocene of Mendoza, Argentina
title_sort	new toxodontid (notoungulata) from the early miocene of mendoza, argentina
publishDate	2015
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00310220_v89_n3_p611_Forasiepi http://hdl.handle.net/20.500.12110/paper_00310220_v89_n3_p611_Forasiepi
work_keys_str_mv	AT naipauermaximiliano newtoxodontidnotoungulatafromtheearlymioceneofmendozaargentina
_version_	1768546385397809152

New toxodontid (Notoungulata) from the Early Miocene of Mendoza, Argentina

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