A new delphinid from the lower Pliocene of the North Sea and the early radiations of true dolphins
With a remarkable exception for the Mediterranean, the worldwide Pliocene record of true dolphins (Cetacea, Odontoceti, Delphinidae) remains scarce, in stark contrast with the large number of extant species testifying to the evolutionary success of this family. Based on a fragmentary skull discovere...
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2021
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ftdoajarticles:oai:doaj.org/article:82f0119370614714ad83f69ef755f6ac 2024-02-04T10:02:44+01:00 A new delphinid from the lower Pliocene of the North Sea and the early radiations of true dolphins A. Belluzzo O. Lambert 2021-04-01T00:00:00Z https://doi.org/10.5194/fr-24-77-2021 https://doaj.org/article/82f0119370614714ad83f69ef755f6ac EN eng Pensoft Publishers https://fr.copernicus.org/articles/24/77/2021/fr-24-77-2021.pdf https://doaj.org/toc/2193-0066 https://doaj.org/toc/2193-0074 doi:10.5194/fr-24-77-2021 2193-0066 2193-0074 https://doaj.org/article/82f0119370614714ad83f69ef755f6ac Fossil Record, Vol 24, Pp 77-92 (2021) Paleontology QE701-760 article 2021 ftdoajarticles https://doi.org/10.5194/fr-24-77-2021 2024-01-07T01:46:51Z With a remarkable exception for the Mediterranean, the worldwide Pliocene record of true dolphins (Cetacea, Odontoceti, Delphinidae) remains scarce, in stark contrast with the large number of extant species testifying to the evolutionary success of this family. Based on a fragmentary skull discovered in lower Pliocene deposits (Zanclean, 5 to 4.4 Ma) of the Kattendijk Formation in the Antwerp harbour (Belgium, southern margin of the North Sea basin), we describe here a new delphinid species, Pliodelphis doelensis gen. et sp. nov. This small dolphin with cranial dimensions in the range of the short-beaked common dolphin Delphinus delphis can be distinguished from other extinct and extant delphinids by a combination of cranial features including the maxilla being significantly narrower than the premaxilla at a short distance anterior to the antorbital notch in dorsal view, the maximum opening of the mesorostral groove being located at the level of the antorbital notches, a transversely wide and anteroposteriorly long dorsal exposure of the presphenoid anterior to the bony nares, and all dorsal infraorbital foramina being located posterior to the premaxillary foramina. P. doelensis constitutes the first member of the family described from the early Pliocene of the North Sea basin and, for the whole North Atlantic realm, only the third outside the Mediterranean. This new record contributes thus to our understanding of the poorly known Pliocene radiation(s) of true dolphins. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Nares ENVELOPE(158.167,158.167,-81.450,-81.450) Fossil Record 24 1 77 92 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Paleontology QE701-760 |
spellingShingle |
Paleontology QE701-760 A. Belluzzo O. Lambert A new delphinid from the lower Pliocene of the North Sea and the early radiations of true dolphins |
topic_facet |
Paleontology QE701-760 |
description |
With a remarkable exception for the Mediterranean, the worldwide Pliocene record of true dolphins (Cetacea, Odontoceti, Delphinidae) remains scarce, in stark contrast with the large number of extant species testifying to the evolutionary success of this family. Based on a fragmentary skull discovered in lower Pliocene deposits (Zanclean, 5 to 4.4 Ma) of the Kattendijk Formation in the Antwerp harbour (Belgium, southern margin of the North Sea basin), we describe here a new delphinid species, Pliodelphis doelensis gen. et sp. nov. This small dolphin with cranial dimensions in the range of the short-beaked common dolphin Delphinus delphis can be distinguished from other extinct and extant delphinids by a combination of cranial features including the maxilla being significantly narrower than the premaxilla at a short distance anterior to the antorbital notch in dorsal view, the maximum opening of the mesorostral groove being located at the level of the antorbital notches, a transversely wide and anteroposteriorly long dorsal exposure of the presphenoid anterior to the bony nares, and all dorsal infraorbital foramina being located posterior to the premaxillary foramina. P. doelensis constitutes the first member of the family described from the early Pliocene of the North Sea basin and, for the whole North Atlantic realm, only the third outside the Mediterranean. This new record contributes thus to our understanding of the poorly known Pliocene radiation(s) of true dolphins. |
format |
Article in Journal/Newspaper |
author |
A. Belluzzo O. Lambert |
author_facet |
A. Belluzzo O. Lambert |
author_sort |
A. Belluzzo |
title |
A new delphinid from the lower Pliocene of the North Sea and the early radiations of true dolphins |
title_short |
A new delphinid from the lower Pliocene of the North Sea and the early radiations of true dolphins |
title_full |
A new delphinid from the lower Pliocene of the North Sea and the early radiations of true dolphins |
title_fullStr |
A new delphinid from the lower Pliocene of the North Sea and the early radiations of true dolphins |
title_full_unstemmed |
A new delphinid from the lower Pliocene of the North Sea and the early radiations of true dolphins |
title_sort |
new delphinid from the lower pliocene of the north sea and the early radiations of true dolphins |
publisher |
Pensoft Publishers |
publishDate |
2021 |
url |
https://doi.org/10.5194/fr-24-77-2021 https://doaj.org/article/82f0119370614714ad83f69ef755f6ac |
long_lat |
ENVELOPE(158.167,158.167,-81.450,-81.450) |
geographic |
Nares |
geographic_facet |
Nares |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Fossil Record, Vol 24, Pp 77-92 (2021) |
op_relation |
https://fr.copernicus.org/articles/24/77/2021/fr-24-77-2021.pdf https://doaj.org/toc/2193-0066 https://doaj.org/toc/2193-0074 doi:10.5194/fr-24-77-2021 2193-0066 2193-0074 https://doaj.org/article/82f0119370614714ad83f69ef755f6ac |
op_doi |
https://doi.org/10.5194/fr-24-77-2021 |
container_title |
Fossil Record |
container_volume |
24 |
container_issue |
1 |
container_start_page |
77 |
op_container_end_page |
92 |
_version_ |
1789969660632891392 |