Scaldiporia vandokkumi, a new pontoporiid (Mammalia, Cetacea, Odontoceti) from the Late Miocene to earliest Pliocene of the Westerschelde estuary (The Netherlands)
Background. The family Pontoporiidae (Cetacea, Odontoceti Inioidea) is currently represented in our oceans by just one species of diminutive dolphin (Pontoporia blainvillei, franciscana). Although P. blainvillei is limited to coastal waters of the South Atlantic along Brazil, Uruguay and Argentina,...
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ftunivgent:oai:archive.ugent.be:8538192 2023-06-11T04:14:24+02:00 Scaldiporia vandokkumi, a new pontoporiid (Mammalia, Cetacea, Odontoceti) from the Late Miocene to earliest Pliocene of the Westerschelde estuary (The Netherlands) Post, Klaas Louwye, Stephen Lambert, Oliver 2017 application/pdf https://biblio.ugent.be/publication/8538192 http://hdl.handle.net/1854/LU-8538192 https://doi.org/10.7717/peerj.3991 https://biblio.ugent.be/publication/8538192/file/8538197 eng eng https://biblio.ugent.be/publication/8538192 http://hdl.handle.net/1854/LU-8538192 http://dx.doi.org/10.7717/peerj.3991 https://biblio.ugent.be/publication/8538192/file/8538197 Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) info:eu-repo/semantics/openAccess PEERJ ISSN: 2167-8359 Biology and Life Sciences Earth and Environmental Sciences Cetacea Inioidea Pontoporiidae Westerschelde The Netherlands Late Miocene earliest Pliocene EASTERN NORTH-ATLANTIC DINOFLAGELLATE CYST DOLPHIN CETACEA PISCO FORMATION INIOID CETACEA MIDDLE MIOCENE NEOGENE RECORD OCEAN BASIN journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2017 ftunivgent https://doi.org/10.7717/peerj.3991 2023-05-10T22:28:35Z Background. The family Pontoporiidae (Cetacea, Odontoceti Inioidea) is currently represented in our oceans by just one species of diminutive dolphin (Pontoporia blainvillei, franciscana). Although P. blainvillei is limited to coastal waters of the South Atlantic along Brazil, Uruguay and Argentina, multiple Miocene and Pliocene fossils indicate the past presence of members of the family in the South Atlantic, South Paciifc and North Atlantic oceans. Our comprehension of the origin and diversity of this clade and of the relationships of its members with other inioids is hampered by the fact that part of the described fossil specimens, especially from the North Atlantic realm, are cranial fragments often associated to limited stratigraphic information. Methods. Based on an almost complete fossil cranium of pontoporiid from the Westerschelde estuary, The Netherlands, whose preservation allows for detailed morphological observations, we describe a new genus and species. The latter is compared to other pontoporiids, as well as 'a few non-pontoporiid inioids. A phylogenetic analysis is performed to investigate the relationship of S. vandokkumi with the best-known extinct and extant inioids. Palynological analysis of the sediment associated to the holotype is used to assess its geological age. Results and discussion. The new genus and species Scaldiporia vandokkurni is characterized among others by greatly thickened premaxillary eminences reaching the level of the antorbital notch. Palynologically dated from the late Tortonian earliest Zanclean (7,6-5 Ma, Late Miocene earliest Pliocene), this new pontoporiid confirms the surprising past diversity of marine inioids in the North Atlantic area. Finally the content of the pontoporiid subfamily Brachydelphininae is briefly discussed Article in Journal/Newspaper North Atlantic Ghent University Academic Bibliography Argentina Uruguay Pisco ENVELOPE(-62.450,-62.450,-62.950,-62.950) PeerJ 5 e3991 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Biology and Life Sciences Earth and Environmental Sciences Cetacea Inioidea Pontoporiidae Westerschelde The Netherlands Late Miocene earliest Pliocene EASTERN NORTH-ATLANTIC DINOFLAGELLATE CYST DOLPHIN CETACEA PISCO FORMATION INIOID CETACEA MIDDLE MIOCENE NEOGENE RECORD OCEAN BASIN |
spellingShingle |
Biology and Life Sciences Earth and Environmental Sciences Cetacea Inioidea Pontoporiidae Westerschelde The Netherlands Late Miocene earliest Pliocene EASTERN NORTH-ATLANTIC DINOFLAGELLATE CYST DOLPHIN CETACEA PISCO FORMATION INIOID CETACEA MIDDLE MIOCENE NEOGENE RECORD OCEAN BASIN Post, Klaas Louwye, Stephen Lambert, Oliver Scaldiporia vandokkumi, a new pontoporiid (Mammalia, Cetacea, Odontoceti) from the Late Miocene to earliest Pliocene of the Westerschelde estuary (The Netherlands) |
topic_facet |
Biology and Life Sciences Earth and Environmental Sciences Cetacea Inioidea Pontoporiidae Westerschelde The Netherlands Late Miocene earliest Pliocene EASTERN NORTH-ATLANTIC DINOFLAGELLATE CYST DOLPHIN CETACEA PISCO FORMATION INIOID CETACEA MIDDLE MIOCENE NEOGENE RECORD OCEAN BASIN |
description |
Background. The family Pontoporiidae (Cetacea, Odontoceti Inioidea) is currently represented in our oceans by just one species of diminutive dolphin (Pontoporia blainvillei, franciscana). Although P. blainvillei is limited to coastal waters of the South Atlantic along Brazil, Uruguay and Argentina, multiple Miocene and Pliocene fossils indicate the past presence of members of the family in the South Atlantic, South Paciifc and North Atlantic oceans. Our comprehension of the origin and diversity of this clade and of the relationships of its members with other inioids is hampered by the fact that part of the described fossil specimens, especially from the North Atlantic realm, are cranial fragments often associated to limited stratigraphic information. Methods. Based on an almost complete fossil cranium of pontoporiid from the Westerschelde estuary, The Netherlands, whose preservation allows for detailed morphological observations, we describe a new genus and species. The latter is compared to other pontoporiids, as well as 'a few non-pontoporiid inioids. A phylogenetic analysis is performed to investigate the relationship of S. vandokkumi with the best-known extinct and extant inioids. Palynological analysis of the sediment associated to the holotype is used to assess its geological age. Results and discussion. The new genus and species Scaldiporia vandokkurni is characterized among others by greatly thickened premaxillary eminences reaching the level of the antorbital notch. Palynologically dated from the late Tortonian earliest Zanclean (7,6-5 Ma, Late Miocene earliest Pliocene), this new pontoporiid confirms the surprising past diversity of marine inioids in the North Atlantic area. Finally the content of the pontoporiid subfamily Brachydelphininae is briefly discussed |
format |
Article in Journal/Newspaper |
author |
Post, Klaas Louwye, Stephen Lambert, Oliver |
author_facet |
Post, Klaas Louwye, Stephen Lambert, Oliver |
author_sort |
Post, Klaas |
title |
Scaldiporia vandokkumi, a new pontoporiid (Mammalia, Cetacea, Odontoceti) from the Late Miocene to earliest Pliocene of the Westerschelde estuary (The Netherlands) |
title_short |
Scaldiporia vandokkumi, a new pontoporiid (Mammalia, Cetacea, Odontoceti) from the Late Miocene to earliest Pliocene of the Westerschelde estuary (The Netherlands) |
title_full |
Scaldiporia vandokkumi, a new pontoporiid (Mammalia, Cetacea, Odontoceti) from the Late Miocene to earliest Pliocene of the Westerschelde estuary (The Netherlands) |
title_fullStr |
Scaldiporia vandokkumi, a new pontoporiid (Mammalia, Cetacea, Odontoceti) from the Late Miocene to earliest Pliocene of the Westerschelde estuary (The Netherlands) |
title_full_unstemmed |
Scaldiporia vandokkumi, a new pontoporiid (Mammalia, Cetacea, Odontoceti) from the Late Miocene to earliest Pliocene of the Westerschelde estuary (The Netherlands) |
title_sort |
scaldiporia vandokkumi, a new pontoporiid (mammalia, cetacea, odontoceti) from the late miocene to earliest pliocene of the westerschelde estuary (the netherlands) |
publishDate |
2017 |
url |
https://biblio.ugent.be/publication/8538192 http://hdl.handle.net/1854/LU-8538192 https://doi.org/10.7717/peerj.3991 https://biblio.ugent.be/publication/8538192/file/8538197 |
long_lat |
ENVELOPE(-62.450,-62.450,-62.950,-62.950) |
geographic |
Argentina Uruguay Pisco |
geographic_facet |
Argentina Uruguay Pisco |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
PEERJ ISSN: 2167-8359 |
op_relation |
https://biblio.ugent.be/publication/8538192 http://hdl.handle.net/1854/LU-8538192 http://dx.doi.org/10.7717/peerj.3991 https://biblio.ugent.be/publication/8538192/file/8538197 |
op_rights |
Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.7717/peerj.3991 |
container_title |
PeerJ |
container_volume |
5 |
container_start_page |
e3991 |
_version_ |
1768392374064513024 |