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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Bibliographic Details
Main Authors: Haidr, Nadia Soledad, Acosta Hospitaleche, Carolina Ileana Alicia
Format: Article in Journal/Newspaper
Language:English
Published: 2017
Subjects:
Paleontología
Sphenisciformes
Eocene
Seymour Island
3D scan
Anatomy
Paleobiodiversity
Antarctic
Marambio
Seymour
Antarc*
Antarctica
Online Access:http://sedici.unlp.edu.ar/handle/10915/119257
id ftunivlaplata:oai:sedici.unlp.edu.ar:10915/119257
record_format openpolar
spelling ftunivlaplata:oai:sedici.unlp.edu.ar:10915/119257 2023-05-15T13:43:37+02:00 A new penguin cranium from Antarctica and its implications for body size diversity during the Eocene Haidr, Nadia Soledad Acosta Hospitaleche, Carolina Ileana Alicia 2017 application/pdf 229-233 http://sedici.unlp.edu.ar/handle/10915/119257 en eng http://sedici.unlp.edu.ar/handle/10915/119257 issn:0077-7749 issn:2363-717X http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) CC-BY-NC-SA Paleontología Sphenisciformes Eocene Seymour Island 3D scan Anatomy Paleobiodiversity Articulo 2017 ftunivlaplata 2021-05-30T00:05:25Z 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. Facultad de Ciencias Naturales y Museo Article in Journal/Newspaper Antarc* Antarctic Antarctica Seymour Island Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual) Antarctic Marambio ENVELOPE(-56.750,-56.750,-64.283,-64.283) Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) Seymour Island ENVELOPE(-56.750,-56.750,-64.283,-64.283)
institution Open Polar
collection Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual)
op_collection_id ftunivlaplata
language English
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. Facultad de Ciencias Naturales y Museo
format Article in Journal/Newspaper
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
long_lat ENVELOPE(-56.750,-56.750,-64.283,-64.283)
ENVELOPE(-56.767,-56.767,-64.283,-64.283)
ENVELOPE(-56.750,-56.750,-64.283,-64.283)
geographic Antarctic
Marambio
Seymour
Seymour Island
geographic_facet Antarctic
Marambio
Seymour
Seymour Island
genre Antarc*
Antarctic
Antarctica
Seymour Island
genre_facet Antarc*
Antarctic
Antarctica
Seymour Island
op_relation http://sedici.unlp.edu.ar/handle/10915/119257
issn:0077-7749
issn:2363-717X
op_rights http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
op_rightsnorm CC-BY-NC-SA
_version_ 1766191219298271232

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