The earliest baleen whale from the Mediterranean: large‐scale implications of an early Miocene thalassotherian mysticete from Piedmont, Italy
Abstract The discovery of an early Miocene chaeomysticete from the Pietra da Cantoni Group in Piedmont (north‐western Italy) allowed for the establishment of Atlanticetus lavei gen. et sp. nov. The new species is represented by a partial skeleton including the periotic and tympanic bullae and has an...
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crwiley:10.1002/spp2.1336 2024-09-15T17:57:25+00:00 The earliest baleen whale from the Mediterranean: large‐scale implications of an early Miocene thalassotherian mysticete from Piedmont, Italy Bisconti, Michelangelo Damarco, Piero Mao, Selina Pavia, Marco Carnevale, Giorgio O'Regan, Hannah Fondazione CRT 2020 http://dx.doi.org/10.1002/spp2.1336 https://onlinelibrary.wiley.com/doi/pdf/10.1002/spp2.1336 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/spp2.1336 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Papers in Palaeontology volume 7, issue 2, page 1147-1166 ISSN 2056-2799 2056-2802 journal-article 2020 crwiley https://doi.org/10.1002/spp2.1336 2024-08-27T04:25:33Z Abstract The discovery of an early Miocene chaeomysticete from the Pietra da Cantoni Group in Piedmont (north‐western Italy) allowed for the establishment of Atlanticetus lavei gen. et sp. nov. The new species is represented by a partial skeleton including the periotic and tympanic bullae and has an anatomical resemblance to Atlanticetus patulus (comb. nov.) from the western North Atlantic. The early Miocene age of the new specimen supports the view that it represents the oldest record of Chaeomysticeti from the Mediterranean. A new phylogenetic analysis showed that both A. patulus and A. lavei belong to a radiation of basal thalassotherian taxa. The basal thalassotherians are monophyletic to the exclusion of Cetotheriidae and Balaenopteroidea. The reconstruction of ancestral characters at selected nodes indicates that the group including Atlanticetus and living balaenopterid taxa independently evolved rostra wide at the base, an anterolateral expansion in the tympanic bulla, and a peculiar arrangement of the endocranial foramina of the periotic, exhibiting a noteworthy phenomenon of convergent evolution in feeding and hearing functions with Balaenopteridae. Palaeobiogeographical analysis shows that the North Pacific was the centre of origin of Balaenomorpha (crown mysticetes), Thalassotherii and Balaenoidea. The recurrent invasion of the Mediterranean by balaenomorph mysticetes occurred from both the North Atlantic and North Pacific. Article in Journal/Newspaper baleen whale North Atlantic Wiley Online Library Papers in Palaeontology 7 2 1147 1166 |
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Wiley Online Library |
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English |
description |
Abstract The discovery of an early Miocene chaeomysticete from the Pietra da Cantoni Group in Piedmont (north‐western Italy) allowed for the establishment of Atlanticetus lavei gen. et sp. nov. The new species is represented by a partial skeleton including the periotic and tympanic bullae and has an anatomical resemblance to Atlanticetus patulus (comb. nov.) from the western North Atlantic. The early Miocene age of the new specimen supports the view that it represents the oldest record of Chaeomysticeti from the Mediterranean. A new phylogenetic analysis showed that both A. patulus and A. lavei belong to a radiation of basal thalassotherian taxa. The basal thalassotherians are monophyletic to the exclusion of Cetotheriidae and Balaenopteroidea. The reconstruction of ancestral characters at selected nodes indicates that the group including Atlanticetus and living balaenopterid taxa independently evolved rostra wide at the base, an anterolateral expansion in the tympanic bulla, and a peculiar arrangement of the endocranial foramina of the periotic, exhibiting a noteworthy phenomenon of convergent evolution in feeding and hearing functions with Balaenopteridae. Palaeobiogeographical analysis shows that the North Pacific was the centre of origin of Balaenomorpha (crown mysticetes), Thalassotherii and Balaenoidea. The recurrent invasion of the Mediterranean by balaenomorph mysticetes occurred from both the North Atlantic and North Pacific. |
author2 |
O'Regan, Hannah Fondazione CRT |
format |
Article in Journal/Newspaper |
author |
Bisconti, Michelangelo Damarco, Piero Mao, Selina Pavia, Marco Carnevale, Giorgio |
spellingShingle |
Bisconti, Michelangelo Damarco, Piero Mao, Selina Pavia, Marco Carnevale, Giorgio The earliest baleen whale from the Mediterranean: large‐scale implications of an early Miocene thalassotherian mysticete from Piedmont, Italy |
author_facet |
Bisconti, Michelangelo Damarco, Piero Mao, Selina Pavia, Marco Carnevale, Giorgio |
author_sort |
Bisconti, Michelangelo |
title |
The earliest baleen whale from the Mediterranean: large‐scale implications of an early Miocene thalassotherian mysticete from Piedmont, Italy |
title_short |
The earliest baleen whale from the Mediterranean: large‐scale implications of an early Miocene thalassotherian mysticete from Piedmont, Italy |
title_full |
The earliest baleen whale from the Mediterranean: large‐scale implications of an early Miocene thalassotherian mysticete from Piedmont, Italy |
title_fullStr |
The earliest baleen whale from the Mediterranean: large‐scale implications of an early Miocene thalassotherian mysticete from Piedmont, Italy |
title_full_unstemmed |
The earliest baleen whale from the Mediterranean: large‐scale implications of an early Miocene thalassotherian mysticete from Piedmont, Italy |
title_sort |
earliest baleen whale from the mediterranean: large‐scale implications of an early miocene thalassotherian mysticete from piedmont, italy |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/spp2.1336 https://onlinelibrary.wiley.com/doi/pdf/10.1002/spp2.1336 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/spp2.1336 |
genre |
baleen whale North Atlantic |
genre_facet |
baleen whale North Atlantic |
op_source |
Papers in Palaeontology volume 7, issue 2, page 1147-1166 ISSN 2056-2799 2056-2802 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/spp2.1336 |
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Papers in Palaeontology |
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7 |
container_issue |
2 |
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1147 |
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1166 |
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1810433568715833344 |