A new Miocene baleen whale from Peru deciphers the dawn of cetotheriids
Cetotheriidae are an iconic, nearly extinct family of baleen whales (Mysticeti) with a highly distinct cranial morphology. Their origins remain a mystery, with even the most archaic species showing a variety of characteristic features. Here, we describe a new species of archaic cetotheriid, Tiucetus...
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crroyalsociety:10.1098/rsos.170560 2024-09-15T17:57:24+00:00 A new Miocene baleen whale from Peru deciphers the dawn of cetotheriids Marx, Felix G. Lambert, Olivier de Muizon, Christian Muséum national d'Histoire naturelle H2020 Marie Skłodowska-Curie Actions Institut Français d'Études Andines 2017 http://dx.doi.org/10.1098/rsos.170560 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.170560 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.170560 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Royal Society Open Science volume 4, issue 9, page 170560 ISSN 2054-5703 journal-article 2017 crroyalsociety https://doi.org/10.1098/rsos.170560 2024-08-12T04:27:37Z Cetotheriidae are an iconic, nearly extinct family of baleen whales (Mysticeti) with a highly distinct cranial morphology. Their origins remain a mystery, with even the most archaic species showing a variety of characteristic features. Here, we describe a new species of archaic cetotheriid, Tiucetus rosae , from the Miocene of Peru. The new material represents the first mysticete from the poorly explored lowest portion of the highly fossiliferous Pisco Formation (allomember P0), and appears to form part of a more archaic assemblage than observed at the well-known localities of Cerro Colorado, Cerro los Quesos, Sud-Sacaco and Aguada de Lomas. Tiucetus resembles basal plicogulans (crown Mysticeti excluding right whales), such as Diorocetus and Parietobalaena , but shares with cetotheriids a distinct morphology of the auditory region, including the presence of an enlarged paroccipital concavity. The distinctive morphology of Tiucetus firmly places Cetotheriidae in the context of the poorly understood ‘cetotheres’ sensu lato , and helps to resolve basal relationships within crown Mysticeti. Article in Journal/Newspaper baleen whale baleen whales The Royal Society Royal Society Open Science 4 9 170560 |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
Cetotheriidae are an iconic, nearly extinct family of baleen whales (Mysticeti) with a highly distinct cranial morphology. Their origins remain a mystery, with even the most archaic species showing a variety of characteristic features. Here, we describe a new species of archaic cetotheriid, Tiucetus rosae , from the Miocene of Peru. The new material represents the first mysticete from the poorly explored lowest portion of the highly fossiliferous Pisco Formation (allomember P0), and appears to form part of a more archaic assemblage than observed at the well-known localities of Cerro Colorado, Cerro los Quesos, Sud-Sacaco and Aguada de Lomas. Tiucetus resembles basal plicogulans (crown Mysticeti excluding right whales), such as Diorocetus and Parietobalaena , but shares with cetotheriids a distinct morphology of the auditory region, including the presence of an enlarged paroccipital concavity. The distinctive morphology of Tiucetus firmly places Cetotheriidae in the context of the poorly understood ‘cetotheres’ sensu lato , and helps to resolve basal relationships within crown Mysticeti. |
author2 |
Muséum national d'Histoire naturelle H2020 Marie Skłodowska-Curie Actions Institut Français d'Études Andines |
format |
Article in Journal/Newspaper |
author |
Marx, Felix G. Lambert, Olivier de Muizon, Christian |
spellingShingle |
Marx, Felix G. Lambert, Olivier de Muizon, Christian A new Miocene baleen whale from Peru deciphers the dawn of cetotheriids |
author_facet |
Marx, Felix G. Lambert, Olivier de Muizon, Christian |
author_sort |
Marx, Felix G. |
title |
A new Miocene baleen whale from Peru deciphers the dawn of cetotheriids |
title_short |
A new Miocene baleen whale from Peru deciphers the dawn of cetotheriids |
title_full |
A new Miocene baleen whale from Peru deciphers the dawn of cetotheriids |
title_fullStr |
A new Miocene baleen whale from Peru deciphers the dawn of cetotheriids |
title_full_unstemmed |
A new Miocene baleen whale from Peru deciphers the dawn of cetotheriids |
title_sort |
new miocene baleen whale from peru deciphers the dawn of cetotheriids |
publisher |
The Royal Society |
publishDate |
2017 |
url |
http://dx.doi.org/10.1098/rsos.170560 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.170560 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.170560 |
genre |
baleen whale baleen whales |
genre_facet |
baleen whale baleen whales |
op_source |
Royal Society Open Science volume 4, issue 9, page 170560 ISSN 2054-5703 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsos.170560 |
container_title |
Royal Society Open Science |
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4 |
container_issue |
9 |
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170560 |
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1810433561516310528 |