A new species of Gaylordia Paula Couto (Mammalia, Metatheria) from Itaboraí, Brazil

We describe a new metatherian of the genus Gaylordia Paula Couto, from the early Eocene Itaboraí Basin, Brazil. This new species (estimated body mass ~60-90.9 g) is based on lower and upper dentition elements and is characterized by a more plesiomorphic dental morphology with respect to G. macrocyno...

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Detalles Bibliográficos
Autores principales: Oliveira, Édison Vicente, Goin, Francisco Javier
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Paleontología
Body mass
Brazil
Mammalia
Metatheria
Paleogene
Systematics
Sistemática
Paleógeno
Massa corporal
Brasil
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86647
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-86647
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Paleontología
Body mass
Brazil
Mammalia
Metatheria
Paleogene
Systematics
Sistemática
Paleógeno
Massa corporal
Brasil
spellingShingle Paleontología
Body mass
Brazil
Mammalia
Metatheria
Paleogene
Systematics
Sistemática
Paleógeno
Massa corporal
Brasil
Oliveira, Édison Vicente
Goin, Francisco Javier
A new species of Gaylordia Paula Couto (Mammalia, Metatheria) from Itaboraí, Brazil
topic_facet Paleontología
Body mass
Brazil
Mammalia
Metatheria
Paleogene
Systematics
Sistemática
Paleógeno
Massa corporal
Brasil
description We describe a new metatherian of the genus Gaylordia Paula Couto, from the early Eocene Itaboraí Basin, Brazil. This new species (estimated body mass ~60-90.9 g) is based on lower and upper dentition elements and is characterized by a more plesiomorphic dental morphology with respect to G. macrocynodonta Paula Couto (with a larger body mass, estimated in ~74-103 g for large individuals or males). The species G. doelloi Marshall, represented by small individuals or females, is regarded a junior synonym of G. macrocynodonta. A phylogenetic analysis as well as details of the occlusal surface of its upper and lower molars suggests that Gaylordia is closely related to the Pucadelphyidae, a non-marsupial “ameridelphian” group previously recorded at the early Paleocene locality of Tiupampa, Bolivia.
format Articulo
Articulo
author Oliveira, Édison Vicente
Goin, Francisco Javier
author_facet Oliveira, Édison Vicente
Goin, Francisco Javier
author_sort Oliveira, Édison Vicente
title A new species of Gaylordia Paula Couto (Mammalia, Metatheria) from Itaboraí, Brazil
title_short A new species of Gaylordia Paula Couto (Mammalia, Metatheria) from Itaboraí, Brazil
title_full A new species of Gaylordia Paula Couto (Mammalia, Metatheria) from Itaboraí, Brazil
title_fullStr A new species of Gaylordia Paula Couto (Mammalia, Metatheria) from Itaboraí, Brazil
title_full_unstemmed A new species of Gaylordia Paula Couto (Mammalia, Metatheria) from Itaboraí, Brazil
title_sort new species of gaylordia paula couto (mammalia, metatheria) from itaboraí, brazil
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/86647
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