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.
Burdigalian
Cetacea
Kentriodon
Kentriodontidae
Odontoceti
Paratethys
Periotic
Physeteridae
Squalodelphinidae
Upper Marine Molasse
Journal
PeerJ
ISSN: 2167-8359
Titre abrégé: PeerJ
Pays: United States
ID NLM: 101603425
Informations de publication
Date de publication:
2022
2022
Historique:
received:
01
10
2021
accepted:
21
03
2022
entrez:
23
5
2022
pubmed:
24
5
2022
medline:
24
5
2022
Statut:
epublish
Résumé
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.
Identifiants
pubmed: 35602890
doi: 10.7717/peerj.13251
pii: 13251
pmc: PMC9119297
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Pagination
e13251Informations de copyright
©2022 Aguirre-Fernández et al.
Déclaration de conflit d'intérêts
The authors declare there are no competing interests.
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