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

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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Autores principales: Forasiepi, A.M., Cerdeño, E., Bond, M., Schmidt, G.I., Naipauer, M., Straehl, F.R., Martinelli, A.G., Garrido, A.C., Schmitz, M.D., Crowley, J.L.
Formato: JOUR
Materias:
Cenozoic
Early Miocene
Nesodon
South America
U–Pb (CA-ID-TIMS) tuff age
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00310220_v89_n3_p611_Forasiepi
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00310220_v89_n3_p611_Forasiepi2023-10-03T14:41:05Z New toxodontid (Notoungulata) from the Early Miocene of Mendoza, Argentina Forasiepi, A.M. Cerdeño, E. Bond, M. Schmidt, G.I. Naipauer, M. Straehl, F.R. Martinelli, A.G. Garrido, A.C. Schmitz, M.D. Crowley, J.L. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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
Forasiepi, A.M.
Cerdeño, E.
Bond, M.
Schmidt, G.I.
Naipauer, M.
Straehl, F.R.
Martinelli, A.G.
Garrido, A.C.
Schmitz, M.D.
Crowley, J.L.
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.
format JOUR
author Forasiepi, A.M.
Cerdeño, E.
Bond, M.
Schmidt, G.I.
Naipauer, M.
Straehl, F.R.
Martinelli, A.G.
Garrido, A.C.
Schmitz, M.D.
Crowley, J.L.
author_facet Forasiepi, A.M.
Cerdeño, E.
Bond, M.
Schmidt, G.I.
Naipauer, M.
Straehl, F.R.
Martinelli, A.G.
Garrido, A.C.
Schmitz, M.D.
Crowley, J.L.
author_sort Forasiepi, A.M.
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
url http://hdl.handle.net/20.500.12110/paper_00310220_v89_n3_p611_Forasiepi
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