A southern species of the tropical catfish genus <i>Phractocephalus</i> (Teleostei: Siluriformes) in the Miocene of South America

Catfish bones from Tortonian (Miocene) freshwater beds of central Argentina are here identified as pertaining to a new species of the tropical pimelodid genus Phractocephalus. The new species differs from the other recent and fossil species of the genus in skull, pectoral girdle and spine characters...

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Detalles Bibliográficos
Autores principales: Azpelicueta, María de las Mercedes, Cione, Alberto Luis
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Ciencias Naturales
Cenozoic
Phractocephalus ivy
Pimelodidae
Argentina
Entre Ríos
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/107890
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-107890
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Cenozoic
Phractocephalus ivy
Pimelodidae
Argentina
Entre Ríos
spellingShingle Ciencias Naturales
Cenozoic
Phractocephalus ivy
Pimelodidae
Argentina
Entre Ríos
Azpelicueta, María de las Mercedes
Cione, Alberto Luis
A southern species of the tropical catfish genus <i>Phractocephalus</i> (Teleostei: Siluriformes) in the Miocene of South America
topic_facet Ciencias Naturales
Cenozoic
Phractocephalus ivy
Pimelodidae
Argentina
Entre Ríos
description Catfish bones from Tortonian (Miocene) freshwater beds of central Argentina are here identified as pertaining to a new species of the tropical pimelodid genus Phractocephalus. The new species differs from the other recent and fossil species of the genus in skull, pectoral girdle and spine characters. The material was found in different localities near the city of Paraná, Entre Ríos Province. The bearing horizon is the so-called “Conglomerado osífero” which constitutes the lowermost beds of the fluvial Ituzaing o Formation. The aquatic vertebrate fauna occurring in the bearing bed shows a similar generic composition to several northern South American Miocene units where Phractocephalus remains were found. This report extends the range of Phractocephalus more than 2000 km to the South. The record is in agreement with higher global temperatures and putative ample hydrographic connections of the river basins in the Paran a area with the Amazon basin until at least the early late Miocene.
format Articulo
Articulo
author Azpelicueta, María de las Mercedes
Cione, Alberto Luis
author_facet Azpelicueta, María de las Mercedes
Cione, Alberto Luis
author_sort Azpelicueta, María de las Mercedes
title A southern species of the tropical catfish genus <i>Phractocephalus</i> (Teleostei: Siluriformes) in the Miocene of South America
title_short A southern species of the tropical catfish genus <i>Phractocephalus</i> (Teleostei: Siluriformes) in the Miocene of South America
title_full A southern species of the tropical catfish genus <i>Phractocephalus</i> (Teleostei: Siluriformes) in the Miocene of South America
title_fullStr A southern species of the tropical catfish genus <i>Phractocephalus</i> (Teleostei: Siluriformes) in the Miocene of South America
title_full_unstemmed A southern species of the tropical catfish genus <i>Phractocephalus</i> (Teleostei: Siluriformes) in the Miocene of South America
title_sort southern species of the tropical catfish genus <i>phractocephalus</i> (teleostei: siluriformes) in the miocene of south america
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/107890
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bdutipo_str Repositorios
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