Penguin cranial remains from the Eocene La Meseta Formation, Isla Marambio (Seymour Island), Antarctic Peninsula
Abstract Widely accepted ideas about trophic preferences of early penguins suggest that all Eocene sphenisciforms were piscivorous. However, recent findings from the La Meseta Formation (Eocene) of Antarctica, support the presence of at least two different morphotypes that may have evolved as a nich...
Published in: | Antarctic Science |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2011
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s0954102011000216 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000216 |
id |
crcambridgeupr:10.1017/s0954102011000216 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/s0954102011000216 2024-03-03T08:38:41+00:00 Penguin cranial remains from the Eocene La Meseta Formation, Isla Marambio (Seymour Island), Antarctic Peninsula Hospitaleche, Carolina Acosta Haidr, Nadia 2011 http://dx.doi.org/10.1017/s0954102011000216 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000216 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 23, issue 4, page 369-378 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2011 crcambridgeupr https://doi.org/10.1017/s0954102011000216 2024-02-08T08:36:23Z Abstract Widely accepted ideas about trophic preferences of early penguins suggest that all Eocene sphenisciforms were piscivorous. However, recent findings from the La Meseta Formation (Eocene) of Antarctica, support the presence of at least two different morphotypes that may have evolved as a niche partitioning strategy, which is consistent with the high diversity recorded. The first of them corresponds to a medium–large sized penguin, resembling the Neogene species in configuration. Another morphotype is represented by extremely large penguins with very long and slender bills, clearly linked to fish catching habits. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Seymour Island Cambridge University Press Antarctic Antarctic Peninsula Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) Seymour Island ENVELOPE(-56.750,-56.750,-64.283,-64.283) Marambio ENVELOPE(-56.750,-56.750,-64.283,-64.283) isla Marambio ENVELOPE(-56.635,-56.635,-64.239,-64.239) Antarctic Science 23 4 369 378 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Hospitaleche, Carolina Acosta Haidr, Nadia Penguin cranial remains from the Eocene La Meseta Formation, Isla Marambio (Seymour Island), Antarctic Peninsula |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Widely accepted ideas about trophic preferences of early penguins suggest that all Eocene sphenisciforms were piscivorous. However, recent findings from the La Meseta Formation (Eocene) of Antarctica, support the presence of at least two different morphotypes that may have evolved as a niche partitioning strategy, which is consistent with the high diversity recorded. The first of them corresponds to a medium–large sized penguin, resembling the Neogene species in configuration. Another morphotype is represented by extremely large penguins with very long and slender bills, clearly linked to fish catching habits. |
format |
Article in Journal/Newspaper |
author |
Hospitaleche, Carolina Acosta Haidr, Nadia |
author_facet |
Hospitaleche, Carolina Acosta Haidr, Nadia |
author_sort |
Hospitaleche, Carolina Acosta |
title |
Penguin cranial remains from the Eocene La Meseta Formation, Isla Marambio (Seymour Island), Antarctic Peninsula |
title_short |
Penguin cranial remains from the Eocene La Meseta Formation, Isla Marambio (Seymour Island), Antarctic Peninsula |
title_full |
Penguin cranial remains from the Eocene La Meseta Formation, Isla Marambio (Seymour Island), Antarctic Peninsula |
title_fullStr |
Penguin cranial remains from the Eocene La Meseta Formation, Isla Marambio (Seymour Island), Antarctic Peninsula |
title_full_unstemmed |
Penguin cranial remains from the Eocene La Meseta Formation, Isla Marambio (Seymour Island), Antarctic Peninsula |
title_sort |
penguin cranial remains from the eocene la meseta formation, isla marambio (seymour island), antarctic peninsula |
publisher |
Cambridge University Press (CUP) |
publishDate |
2011 |
url |
http://dx.doi.org/10.1017/s0954102011000216 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000216 |
long_lat |
ENVELOPE(-56.767,-56.767,-64.283,-64.283) ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-56.635,-56.635,-64.239,-64.239) |
geographic |
Antarctic Antarctic Peninsula Seymour Seymour Island Marambio isla Marambio |
geographic_facet |
Antarctic Antarctic Peninsula Seymour Seymour Island Marambio isla Marambio |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Seymour Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Seymour Island |
op_source |
Antarctic Science volume 23, issue 4, page 369-378 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102011000216 |
container_title |
Antarctic Science |
container_volume |
23 |
container_issue |
4 |
container_start_page |
369 |
op_container_end_page |
378 |
_version_ |
1792507116256231424 |