Neogene and Quaternary fossil remains of beaked whales (Cetacea, Odontoceti, Ziphiidae) from deep-sea deposits off Crozet and Kerguelen islands, Southern Ocean
Although a high number of extant beaked whale species (Cetacea, Odontoceti, Ziphiidae) live in the Southern Ocean and neighbouring areas, only little is known about the past occupation of the region by these highly specialized, deep diving and echolocating cetaceans. Recently, longline fishing activ...
Published in: | Geodiversitas |
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Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2018
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Online Access: | https://hdl.handle.net/11370/8f8895fe-35e0-4830-b2f3-98f86f2014f6 https://research.rug.nl/en/publications/8f8895fe-35e0-4830-b2f3-98f86f2014f6 https://doi.org/10.5252/geodiversitas2018v40a6 https://pure.rug.nl/ws/files/56211122/g2018v40a6.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/8f8895fe-35e0-4830-b2f3-98f86f2014f6 2024-06-23T07:47:47+00:00 Neogene and Quaternary fossil remains of beaked whales (Cetacea, Odontoceti, Ziphiidae) from deep-sea deposits off Crozet and Kerguelen islands, Southern Ocean Lambert, Olivier de Muizon, Christian Duhamel, Guy van der Plicht, Johannes 2018-03-29 application/pdf https://hdl.handle.net/11370/8f8895fe-35e0-4830-b2f3-98f86f2014f6 https://research.rug.nl/en/publications/8f8895fe-35e0-4830-b2f3-98f86f2014f6 https://doi.org/10.5252/geodiversitas2018v40a6 https://pure.rug.nl/ws/files/56211122/g2018v40a6.pdf eng eng https://research.rug.nl/en/publications/8f8895fe-35e0-4830-b2f3-98f86f2014f6 info:eu-repo/semantics/openAccess Lambert , O , de Muizon , C , Duhamel , G & van der Plicht , J 2018 , ' Neogene and Quaternary fossil remains of beaked whales (Cetacea, Odontoceti, Ziphiidae) from deep-sea deposits off Crozet and Kerguelen islands, Southern Ocean ' , Geodiversitas , vol. 40 , no. 6 , pp. 135-160 . https://doi.org/10.5252/geodiversitas2018v40a6 Ziphiidae Kerguelen Islands Crozet Islands Miocene Quaternary Southern Ocean new species beaked whale LATE MIOCENE COLLAGEN FLOOR EVOLUTION DENMARK SHELF BONE article 2018 ftunigroningenpu https://doi.org/10.5252/geodiversitas2018v40a6 2024-06-10T16:34:59Z Although a high number of extant beaked whale species (Cetacea, Odontoceti, Ziphiidae) live in the Southern Ocean and neighbouring areas, only little is known about the past occupation of the region by these highly specialized, deep diving and echolocating cetaceans. Recently, longline fishing activities along the seafloor at depths of 500-2000 m off the sub-antarctic Crozet and Kerguelen islands, Indian sector of Southern Ocean, resulted in the accessory "capture" of tens of ziphiid fossil cranial remains. Our description and comparison of the best-preserved and most diagnostic crania from this sample lead to the identification of more than eight species in at least seven genera: the hyperoodontines Africanacetus ceratopsis, Khoikhoicetus kergueleni n. sp., Hyperoodontinae indet. aff. Africanacetus, and Mesoplodon sp. aff. Mesoplodon layardii, the ziphiines lzikoziphius rossi and Ziphius sp., and the ziphiids indet. Nenga sp. aff. Nenga meganasalis and Xhosacetus hendeysi. Unsurprisingly, with at least four species in common (A. ceratopsis, lzikoziphius rossi, X. hendeysi, and Ziphius sp.), the assemblage displays high similarities with assemblages described from deep-sea deposits off South Africa, providing thus new data on the palaeogeographic distribution of several extinct species and indicating a roughly similar geochronological age for at least a part of the assemblages. The limited amount of data available points to a pre-Pliocene age for a large part of the Crozet-Kerguelen assemblage, suggesting a relatively early, Miocene colonization of the Southern Ocean by crown ziphiids. Contrastingly, C-14 radiometric dating of two specimens of Mesoplodon sp. aff. Mesoploden layardii yielded latest Pleistocene-earliest Holocene ages. These results reveal the presence either of an extinct species of Mesoplodon in the Southern Ocean only a few thousands years ago, or of an up-to-now unidentified extant species closely related to the strap-toothed whale M. layardii. Article in Journal/Newspaper Antarc* Antarctic Crozet Islands Kerguelen Islands Southern Ocean toothed whale University of Groningen research database Antarctic Indian Kerguelen Kerguelen Islands Southern Ocean Geodiversitas 40 2 135 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
Ziphiidae Kerguelen Islands Crozet Islands Miocene Quaternary Southern Ocean new species beaked whale LATE MIOCENE COLLAGEN FLOOR EVOLUTION DENMARK SHELF BONE |
spellingShingle |
Ziphiidae Kerguelen Islands Crozet Islands Miocene Quaternary Southern Ocean new species beaked whale LATE MIOCENE COLLAGEN FLOOR EVOLUTION DENMARK SHELF BONE Lambert, Olivier de Muizon, Christian Duhamel, Guy van der Plicht, Johannes Neogene and Quaternary fossil remains of beaked whales (Cetacea, Odontoceti, Ziphiidae) from deep-sea deposits off Crozet and Kerguelen islands, Southern Ocean |
topic_facet |
Ziphiidae Kerguelen Islands Crozet Islands Miocene Quaternary Southern Ocean new species beaked whale LATE MIOCENE COLLAGEN FLOOR EVOLUTION DENMARK SHELF BONE |
description |
Although a high number of extant beaked whale species (Cetacea, Odontoceti, Ziphiidae) live in the Southern Ocean and neighbouring areas, only little is known about the past occupation of the region by these highly specialized, deep diving and echolocating cetaceans. Recently, longline fishing activities along the seafloor at depths of 500-2000 m off the sub-antarctic Crozet and Kerguelen islands, Indian sector of Southern Ocean, resulted in the accessory "capture" of tens of ziphiid fossil cranial remains. Our description and comparison of the best-preserved and most diagnostic crania from this sample lead to the identification of more than eight species in at least seven genera: the hyperoodontines Africanacetus ceratopsis, Khoikhoicetus kergueleni n. sp., Hyperoodontinae indet. aff. Africanacetus, and Mesoplodon sp. aff. Mesoplodon layardii, the ziphiines lzikoziphius rossi and Ziphius sp., and the ziphiids indet. Nenga sp. aff. Nenga meganasalis and Xhosacetus hendeysi. Unsurprisingly, with at least four species in common (A. ceratopsis, lzikoziphius rossi, X. hendeysi, and Ziphius sp.), the assemblage displays high similarities with assemblages described from deep-sea deposits off South Africa, providing thus new data on the palaeogeographic distribution of several extinct species and indicating a roughly similar geochronological age for at least a part of the assemblages. The limited amount of data available points to a pre-Pliocene age for a large part of the Crozet-Kerguelen assemblage, suggesting a relatively early, Miocene colonization of the Southern Ocean by crown ziphiids. Contrastingly, C-14 radiometric dating of two specimens of Mesoplodon sp. aff. Mesoploden layardii yielded latest Pleistocene-earliest Holocene ages. These results reveal the presence either of an extinct species of Mesoplodon in the Southern Ocean only a few thousands years ago, or of an up-to-now unidentified extant species closely related to the strap-toothed whale M. layardii. |
format |
Article in Journal/Newspaper |
author |
Lambert, Olivier de Muizon, Christian Duhamel, Guy van der Plicht, Johannes |
author_facet |
Lambert, Olivier de Muizon, Christian Duhamel, Guy van der Plicht, Johannes |
author_sort |
Lambert, Olivier |
title |
Neogene and Quaternary fossil remains of beaked whales (Cetacea, Odontoceti, Ziphiidae) from deep-sea deposits off Crozet and Kerguelen islands, Southern Ocean |
title_short |
Neogene and Quaternary fossil remains of beaked whales (Cetacea, Odontoceti, Ziphiidae) from deep-sea deposits off Crozet and Kerguelen islands, Southern Ocean |
title_full |
Neogene and Quaternary fossil remains of beaked whales (Cetacea, Odontoceti, Ziphiidae) from deep-sea deposits off Crozet and Kerguelen islands, Southern Ocean |
title_fullStr |
Neogene and Quaternary fossil remains of beaked whales (Cetacea, Odontoceti, Ziphiidae) from deep-sea deposits off Crozet and Kerguelen islands, Southern Ocean |
title_full_unstemmed |
Neogene and Quaternary fossil remains of beaked whales (Cetacea, Odontoceti, Ziphiidae) from deep-sea deposits off Crozet and Kerguelen islands, Southern Ocean |
title_sort |
neogene and quaternary fossil remains of beaked whales (cetacea, odontoceti, ziphiidae) from deep-sea deposits off crozet and kerguelen islands, southern ocean |
publishDate |
2018 |
url |
https://hdl.handle.net/11370/8f8895fe-35e0-4830-b2f3-98f86f2014f6 https://research.rug.nl/en/publications/8f8895fe-35e0-4830-b2f3-98f86f2014f6 https://doi.org/10.5252/geodiversitas2018v40a6 https://pure.rug.nl/ws/files/56211122/g2018v40a6.pdf |
geographic |
Antarctic Indian Kerguelen Kerguelen Islands Southern Ocean |
geographic_facet |
Antarctic Indian Kerguelen Kerguelen Islands Southern Ocean |
genre |
Antarc* Antarctic Crozet Islands Kerguelen Islands Southern Ocean toothed whale |
genre_facet |
Antarc* Antarctic Crozet Islands Kerguelen Islands Southern Ocean toothed whale |
op_source |
Lambert , O , de Muizon , C , Duhamel , G & van der Plicht , J 2018 , ' Neogene and Quaternary fossil remains of beaked whales (Cetacea, Odontoceti, Ziphiidae) from deep-sea deposits off Crozet and Kerguelen islands, Southern Ocean ' , Geodiversitas , vol. 40 , no. 6 , pp. 135-160 . https://doi.org/10.5252/geodiversitas2018v40a6 |
op_relation |
https://research.rug.nl/en/publications/8f8895fe-35e0-4830-b2f3-98f86f2014f6 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5252/geodiversitas2018v40a6 |
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