The first rodent from the Marino Formation (Miocene) at Divisadero Largo (Mendoza Argentina) and its biochronological implications

A new significant mammal fossil from the Marino Formation in the area of Divisadero Largo (Mendoza, Argentina) is described herein. The material consists of a mandibular fragment with the right series p4-m3 of the rodent Scleromys sp. It is compared with the Santacrucian species S. osbornianus Amegh...

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Autores principales:	Cerdeño,Esperanza, Vucetich,M. Guiomar
Lenguaje:	English
Publicado:	Servicio Nacional de Geología y Minería (SERNAGEOMIN) 2007
Materias:	Rodents Marino Formation Early Miocene
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-02082007000200002
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spelling	oai:scielo:S0716-020820070002000022007-09-07The first rodent from the Marino Formation (Miocene) at Divisadero Largo (Mendoza Argentina) and its biochronological implicationsCerdeño,EsperanzaVucetich,M. Guiomar Rodents Marino Formation Early Miocene A new significant mammal fossil from the Marino Formation in the area of Divisadero Largo (Mendoza, Argentina) is described herein. The material consists of a mandibular fragment with the right series p4-m3 of the rodent Scleromys sp. It is compared with the Santacrucian species S. osbornianus Ameghino and S. angustus Ameghino, and with S. quadrangulatus Kramarz from the Pinturas Formation, all of them from the Santa Cruz Province. At the same time, the studied fossil presents a combination of characters that differ from those species: more transverse molars, with anterior wall slightly curved, lower degree of hypsodonty and smaller size. However, due to the great morphological variation within Scleromys, a specific determination is not provided based on a sole specimen. The presence of this genus, together with the previously studied mesotheriine, supports an early Miocene age for the middle member of the Marino Formationinfo:eu-repo/semantics/openAccessServicio Nacional de Geología y Minería (SERNAGEOMIN)Revista geológica de Chile v.34 n.2 20072007-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-02082007000200002en10.4067/S0716-02082007000200002
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Rodents Marino Formation Early Miocene
spellingShingle	Rodents Marino Formation Early Miocene Cerdeño,Esperanza Vucetich,M. Guiomar The first rodent from the Marino Formation (Miocene) at Divisadero Largo (Mendoza Argentina) and its biochronological implications
description	A new significant mammal fossil from the Marino Formation in the area of Divisadero Largo (Mendoza, Argentina) is described herein. The material consists of a mandibular fragment with the right series p4-m3 of the rodent Scleromys sp. It is compared with the Santacrucian species S. osbornianus Ameghino and S. angustus Ameghino, and with S. quadrangulatus Kramarz from the Pinturas Formation, all of them from the Santa Cruz Province. At the same time, the studied fossil presents a combination of characters that differ from those species: more transverse molars, with anterior wall slightly curved, lower degree of hypsodonty and smaller size. However, due to the great morphological variation within Scleromys, a specific determination is not provided based on a sole specimen. The presence of this genus, together with the previously studied mesotheriine, supports an early Miocene age for the middle member of the Marino Formation
author	Cerdeño,Esperanza Vucetich,M. Guiomar
author_facet	Cerdeño,Esperanza Vucetich,M. Guiomar
author_sort	Cerdeño,Esperanza
title	The first rodent from the Marino Formation (Miocene) at Divisadero Largo (Mendoza Argentina) and its biochronological implications
title_short	The first rodent from the Marino Formation (Miocene) at Divisadero Largo (Mendoza Argentina) and its biochronological implications
title_full	The first rodent from the Marino Formation (Miocene) at Divisadero Largo (Mendoza Argentina) and its biochronological implications
title_fullStr	The first rodent from the Marino Formation (Miocene) at Divisadero Largo (Mendoza Argentina) and its biochronological implications
title_full_unstemmed	The first rodent from the Marino Formation (Miocene) at Divisadero Largo (Mendoza Argentina) and its biochronological implications
title_sort	first rodent from the marino formation (miocene) at divisadero largo (mendoza argentina) and its biochronological implications
publisher	Servicio Nacional de Geología y Minería (SERNAGEOMIN)
publishDate	2007
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-02082007000200002
work_keys_str_mv	AT cerdenoesperanza thefirstrodentfromthemarinoformationmioceneatdivisaderolargomendozaargentinaanditsbiochronologicalimplications AT vucetichmguiomar thefirstrodentfromthemarinoformationmioceneatdivisaderolargomendozaargentinaanditsbiochronologicalimplications AT cerdenoesperanza firstrodentfromthemarinoformationmioceneatdivisaderolargomendozaargentinaanditsbiochronologicalimplications AT vucetichmguiomar firstrodentfromthemarinoformationmioceneatdivisaderolargomendozaargentinaanditsbiochronologicalimplications
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The first rodent from the Marino Formation (Miocene) at Divisadero Largo (Mendoza Argentina) and its biochronological implications

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