Middle Cenozoic penguin remains from the Patagonian cordillera

Middle Cenozoic marine fossil-bearing beds crop out in the Cerro Plataforma (western Chubut Province, Argentina) at about 1,400 m a.s.l. They are located 500 km far from the modern Atlantic coast and only 50 km from the Pacific Ocean. Well preserved penguin bones and a shark tooth were found therein...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Acosta Hospitaleche, Carolina Ileana Alicia, Griffin, Miguel, Asensio, Marcos, Cione, Alberto Luis, Tambussi, Claudia Patricia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Ciencias Naturales
Miocene
Oligocene
Patagonia
South America
Spheniscidae
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85156
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85156
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
Miocene
Oligocene
Patagonia
South America
Spheniscidae
spellingShingle Ciencias Naturales
Miocene
Oligocene
Patagonia
South America
Spheniscidae
Acosta Hospitaleche, Carolina Ileana Alicia
Griffin, Miguel
Asensio, Marcos
Cione, Alberto Luis
Tambussi, Claudia Patricia
Middle Cenozoic penguin remains from the Patagonian cordillera
topic_facet Ciencias Naturales
Miocene
Oligocene
Patagonia
South America
Spheniscidae
description Middle Cenozoic marine fossil-bearing beds crop out in the Cerro Plataforma (western Chubut Province, Argentina) at about 1,400 m a.s.l. They are located 500 km far from the modern Atlantic coast and only 50 km from the Pacific Ocean. Well preserved penguin bones and a shark tooth were found therein. Invertebrates include corals, bryozoans, abundant mollusks, echinoids, and crabs. Morphogeometric analysis and comparative description confirmed that the penguin humerus is referable to Palaeospheniscus bergi Moreno and Mercerat, 1891. Most of the fossils indicate a Miocene age. However, there is a debate about if the bearing beds are of Pacific or Atlantic origin. Fossil invertebrates identifiable at species level reveal Pacific affinity, the shark species is cosmopolitan, and Palaeospheniscus bergi is known from early Miocene Atlantic units of southern South America. Yet, Palaeospheniscus Moreno and Mercerat, 1891 is also known from Miocene Pacific beds but it has not been identified at specific level yet. This is the highest site in topographic terms in which penguin fossils occur. This indicates a remarkable uplift for the area, probably from the middle Miocene.
format Articulo
Articulo
author Acosta Hospitaleche, Carolina Ileana Alicia
Griffin, Miguel
Asensio, Marcos
Cione, Alberto Luis
Tambussi, Claudia Patricia
author_facet Acosta Hospitaleche, Carolina Ileana Alicia
Griffin, Miguel
Asensio, Marcos
Cione, Alberto Luis
Tambussi, Claudia Patricia
author_sort Acosta Hospitaleche, Carolina Ileana Alicia
title Middle Cenozoic penguin remains from the Patagonian cordillera
title_short Middle Cenozoic penguin remains from the Patagonian cordillera
title_full Middle Cenozoic penguin remains from the Patagonian cordillera
title_fullStr Middle Cenozoic penguin remains from the Patagonian cordillera
title_full_unstemmed Middle Cenozoic penguin remains from the Patagonian cordillera
title_sort middle cenozoic penguin remains from the patagonian cordillera
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/85156
work_keys_str_mv AT acostahospitalechecarolinaileanaalicia middlecenozoicpenguinremainsfromthepatagoniancordillera
AT griffinmiguel middlecenozoicpenguinremainsfromthepatagoniancordillera
AT asensiomarcos middlecenozoicpenguinremainsfromthepatagoniancordillera
AT cionealbertoluis middlecenozoicpenguinremainsfromthepatagoniancordillera
AT tambussiclaudiapatricia middlecenozoicpenguinremainsfromthepatagoniancordillera
AT acostahospitalechecarolinaileanaalicia restosdepinguinosdelcenozoicomediodelacordillerapatagonica
AT griffinmiguel restosdepinguinosdelcenozoicomediodelacordillerapatagonica
AT asensiomarcos restosdepinguinosdelcenozoicomediodelacordillerapatagonica
AT cionealbertoluis restosdepinguinosdelcenozoicomediodelacordillerapatagonica
AT tambussiclaudiapatricia restosdepinguinosdelcenozoicomediodelacordillerapatagonica
bdutipo_str Repositorios
_version_ 1764820489061007363

Ejemplares similares