A new penguin cranium from Antarctica and its implications for body size diversity during the Eocene

Although penguins have a very abundant fossil record in Antarctica, very few cranial elements have been found so far, and in all the cases the specimens are incomplete. We describe a new cranium of a medium-sized penguin from the late Eocene Submeseta Formation in Marambio/ Seymour Island, Antarctic...

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Autores principales: Haidr, Nadia Soledad, Acosta Hospitaleche, Carolina Ileana Alicia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Paleontología
Sphenisciformes
Eocene
Seymour Island
3D scan
Anatomy
Paleobiodiversity
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/119257
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-119257
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Paleontología
Sphenisciformes
Eocene
Seymour Island
3D scan
Anatomy
Paleobiodiversity
spellingShingle Paleontología
Sphenisciformes
Eocene
Seymour Island
3D scan
Anatomy
Paleobiodiversity
Haidr, Nadia Soledad
Acosta Hospitaleche, Carolina Ileana Alicia
A new penguin cranium from Antarctica and its implications for body size diversity during the Eocene
topic_facet Paleontología
Sphenisciformes
Eocene
Seymour Island
3D scan
Anatomy
Paleobiodiversity
description Although penguins have a very abundant fossil record in Antarctica, very few cranial elements have been found so far, and in all the cases the specimens are incomplete. We describe a new cranium of a medium-sized penguin from the late Eocene Submeseta Formation in Marambio/ Seymour Island, Antarctica. Its morphology allows us to establish a common cranial pattern for all known Eocene taxa (including South American, Antarctic and probably Oceanian species), with very different proportions between cranium and post-cranium from those of modern penguins. These Paleogene fossils exhibit a small neurocrania, extremely elongated bills, large occipital condyles, and strong cranio-mandibular articulations.
format Articulo
Articulo
author Haidr, Nadia Soledad
Acosta Hospitaleche, Carolina Ileana Alicia
author_facet Haidr, Nadia Soledad
Acosta Hospitaleche, Carolina Ileana Alicia
author_sort Haidr, Nadia Soledad
title A new penguin cranium from Antarctica and its implications for body size diversity during the Eocene
title_short A new penguin cranium from Antarctica and its implications for body size diversity during the Eocene
title_full A new penguin cranium from Antarctica and its implications for body size diversity during the Eocene
title_fullStr A new penguin cranium from Antarctica and its implications for body size diversity during the Eocene
title_full_unstemmed A new penguin cranium from Antarctica and its implications for body size diversity during the Eocene
title_sort new penguin cranium from antarctica and its implications for body size diversity during the eocene
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/119257
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