First records of extinct kentriodontid and squalodelphinid dolphins from the Upper Marine Molasse (Burdigalian age) of Switzerland and a reappraisal of the Swiss cetacean fauna
The Swiss Upper Marine Molasse (OMM) documents a transgression event dated to around 21 to 17 million years in which dolphin and other vertebrate remains have been reported. We revised the whole cetacean (whales and dolphins) OMM assemblage available in main collections, focusing on the identificati...
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crpeerj:10.7717/peerj.13251 2024-06-02T08:12:15+00:00 First records of extinct kentriodontid and squalodelphinid dolphins from the Upper Marine Molasse (Burdigalian age) of Switzerland and a reappraisal of the Swiss cetacean fauna Aguirre-Fernández, Gabriel Jost, Jürg Hilfiker, Sarah Fonds für Lehre und Forschung The Synthesys Programme 2022 http://dx.doi.org/10.7717/peerj.13251 https://peerj.com/articles/13251.pdf https://peerj.com/articles/13251.xml https://peerj.com/articles/13251.html en eng PeerJ https://creativecommons.org/licenses/by/4.0/ PeerJ volume 10, page e13251 ISSN 2167-8359 journal-article 2022 crpeerj https://doi.org/10.7717/peerj.13251 2024-05-07T14:13:53Z The Swiss Upper Marine Molasse (OMM) documents a transgression event dated to around 21 to 17 million years in which dolphin and other vertebrate remains have been reported. We revised the whole cetacean (whales and dolphins) OMM assemblage available in main collections, focusing on the identification and interpretation of periotics (bone that contains the inner ear). Periotics are rare, but they provide the richest taxonomic information in the sample and hint to environmental associations. Micro-computerized tomography allowed the reconstruction of bony labyrinths for comparisons and environmental interpretations. Three families are represented by periotics: Kentriodontidae, Squalodelphinidae and Physeteridae. The cetacean taxonomic composition of the Swiss OMM reinforces biogeographical patterns reported for the Mediterranean and Paratethys during the Burdigalian at a regional scale and the Calvert cetacean fauna of the northwest Atlantic at oceanic scale. Article in Journal/Newspaper Northwest Atlantic PeerJ Publishing PeerJ 10 e13251 |
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English |
description |
The Swiss Upper Marine Molasse (OMM) documents a transgression event dated to around 21 to 17 million years in which dolphin and other vertebrate remains have been reported. We revised the whole cetacean (whales and dolphins) OMM assemblage available in main collections, focusing on the identification and interpretation of periotics (bone that contains the inner ear). Periotics are rare, but they provide the richest taxonomic information in the sample and hint to environmental associations. Micro-computerized tomography allowed the reconstruction of bony labyrinths for comparisons and environmental interpretations. Three families are represented by periotics: Kentriodontidae, Squalodelphinidae and Physeteridae. The cetacean taxonomic composition of the Swiss OMM reinforces biogeographical patterns reported for the Mediterranean and Paratethys during the Burdigalian at a regional scale and the Calvert cetacean fauna of the northwest Atlantic at oceanic scale. |
author2 |
Fonds für Lehre und Forschung The Synthesys Programme |
format |
Article in Journal/Newspaper |
author |
Aguirre-Fernández, Gabriel Jost, Jürg Hilfiker, Sarah |
spellingShingle |
Aguirre-Fernández, Gabriel Jost, Jürg Hilfiker, Sarah First records of extinct kentriodontid and squalodelphinid dolphins from the Upper Marine Molasse (Burdigalian age) of Switzerland and a reappraisal of the Swiss cetacean fauna |
author_facet |
Aguirre-Fernández, Gabriel Jost, Jürg Hilfiker, Sarah |
author_sort |
Aguirre-Fernández, Gabriel |
title |
First records of extinct kentriodontid and squalodelphinid dolphins from the Upper Marine Molasse (Burdigalian age) of Switzerland and a reappraisal of the Swiss cetacean fauna |
title_short |
First records of extinct kentriodontid and squalodelphinid dolphins from the Upper Marine Molasse (Burdigalian age) of Switzerland and a reappraisal of the Swiss cetacean fauna |
title_full |
First records of extinct kentriodontid and squalodelphinid dolphins from the Upper Marine Molasse (Burdigalian age) of Switzerland and a reappraisal of the Swiss cetacean fauna |
title_fullStr |
First records of extinct kentriodontid and squalodelphinid dolphins from the Upper Marine Molasse (Burdigalian age) of Switzerland and a reappraisal of the Swiss cetacean fauna |
title_full_unstemmed |
First records of extinct kentriodontid and squalodelphinid dolphins from the Upper Marine Molasse (Burdigalian age) of Switzerland and a reappraisal of the Swiss cetacean fauna |
title_sort |
first records of extinct kentriodontid and squalodelphinid dolphins from the upper marine molasse (burdigalian age) of switzerland and a reappraisal of the swiss cetacean fauna |
publisher |
PeerJ |
publishDate |
2022 |
url |
http://dx.doi.org/10.7717/peerj.13251 https://peerj.com/articles/13251.pdf https://peerj.com/articles/13251.xml https://peerj.com/articles/13251.html |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
PeerJ volume 10, page e13251 ISSN 2167-8359 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.7717/peerj.13251 |
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10 |
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e13251 |
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1800758639792750592 |