Quaternary deep-sea ostracods from the north-western Pacific Ocean: global biogeography and Drake-Passage, Tethyan, Central American and Arctic pathways

Moriaki Yasuhara; Gene Hunt; Hisayo Okahashi

doi:10.1080/14772019.2017.1393019

Quaternary deep-sea ostracods from the north-western Pacific Ocean: global biogeography and Drake-Passage, Tethyan, Central American and Arctic pathways

Moriaki Yasuhara
, Gene Hunt
, Hisayo Okahashi

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

12 Citations (Scopus)

Abstract

Twelve genera and 19 species of deep-sea ostracods from the Shatsky Rise, north-western Pacific, were examined and illustrated for taxonomy. Three new species, Cytheropteron nasutum sp. nov., Poseidonamicus shatskyensis sp. nov. and Legitimocythere stellae sp. nov., are described. Based on these Shatsky Rise ostracods and a comprehensive literature survey of synonyms, we discuss global biogeography and possible migration pathways of deep-sea species. The four possible deep-water pathways connecting the Atlantic and Pacific Oceans are: the Drake Passage (Southern Ocean), established by 30 Ma; the Tethys Seaway, which had closed by 19–14 Ma; the Central American Seaway, which had closed by 3 Ma; and the Arctic Ocean Seaway via the Bering Strait, which opened about 4.8–7.4 Ma, and via the Fram Strait, which opened between 10 and 20 Ma. The Drake Passage is likely the major pathway. We argue that the Arctic was an important pathway for some deep-sea species before the mid-Pleistocene. Most deep-sea organisms have poor fossil records, and thus the rich fossil record of deep-sea ostracods is an ideal model system for the study of deep-time biogeography of deep-sea organisms. It may well be that other deep-sea organisms had similar palaeobiogeographical histories and patterns. http://zoobank.org/urn:lsid:zoobank.org:pub:3B70B7E5-04E0-4FF7-91EF-88CE1B199C8D. © 2017, © The Trustees of the Natural History Museum, London 2017. All rights reserved.

Original language	English
Pages (from-to)	91-110
Number of pages	20
Journal	Journal of Systematic Palaeontology
Volume	17
Issue number	2
DOIs	https://doi.org/10.1080/14772019.2017.1393019
Publication status	Published - 17 Jan 2019
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

The work described in this article was partially supported by grants from the Research Grants Council of the Hong Kong Special Administrative Region, China (project codes: HKU 17311316; HKU 17303115; HKU 17306014; HKU 709413P), the Seed Funding Programme for Basic Research of the University of Hong Kong (project codes: 201611159053; 201511159075; 201411159017), the Smithsonian Postdoctoral Fellowship, and the Smithsonian Marine Science Network Postdoctoral Fellowship (to MY). We thank H. Kawahata for providing the NGC 104 samples; A. Kuroyanagi for help with subsampling; M. G. Y. Lo, L. M. Y. Wong and C. Sanford for continuous support; S. Whittaker for help with SEM imaging; D. Levin and J. Strotman for help in depositing type and figured specimens; and S. N. Brandão, D. J. Horne and an anonymous referee for helpful comments. The work described in this article was partially supported by grants from the Research Grants Council of the Hong Kong Special Administrative Region, China (project codes: HKU 17311316; HKU 17303115; HKU 17306014; HKU 709413P), the Seed Funding Programme for Basic Research of the University of Hong Kong (project codes: 201611159053; 201511159075; 201411159017), the Smithsonian Postdoctoral Fellowship, and the Smithsonian Marine Science Network Postdoctoral Fellowship (to MY).

Research Keywords

Central American Seaway
migration
Ostracoda
Panama
Shatsky Rise
Southern Ocean
Tethys

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title = "Quaternary deep-sea ostracods from the north-western Pacific Ocean: global biogeography and Drake-Passage, Tethyan, Central American and Arctic pathways",

abstract = "Twelve genera and 19 species of deep-sea ostracods from the Shatsky Rise, north-western Pacific, were examined and illustrated for taxonomy. Three new species, Cytheropteron nasutum sp. nov., Poseidonamicus shatskyensis sp. nov. and Legitimocythere stellae sp. nov., are described. Based on these Shatsky Rise ostracods and a comprehensive literature survey of synonyms, we discuss global biogeography and possible migration pathways of deep-sea species. The four possible deep-water pathways connecting the Atlantic and Pacific Oceans are: the Drake Passage (Southern Ocean), established by 30 Ma; the Tethys Seaway, which had closed by 19–14 Ma; the Central American Seaway, which had closed by 3 Ma; and the Arctic Ocean Seaway via the Bering Strait, which opened about 4.8–7.4 Ma, and via the Fram Strait, which opened between 10 and 20 Ma. The Drake Passage is likely the major pathway. We argue that the Arctic was an important pathway for some deep-sea species before the mid-Pleistocene. Most deep-sea organisms have poor fossil records, and thus the rich fossil record of deep-sea ostracods is an ideal model system for the study of deep-time biogeography of deep-sea organisms. It may well be that other deep-sea organisms had similar palaeobiogeographical histories and patterns. http://zoobank.org/urn:lsid:zoobank.org:pub:3B70B7E5-04E0-4FF7-91EF-88CE1B199C8D. {\textcopyright} 2017, {\textcopyright} The Trustees of the Natural History Museum, London 2017. All rights reserved.",

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Quaternary deep-sea ostracods from the north-western Pacific Ocean: global biogeography and Drake-Passage, Tethyan, Central American and Arctic pathways. / Yasuhara, Moriaki; Hunt, Gene; Okahashi, Hisayo.
In: Journal of Systematic Palaeontology, Vol. 17, No. 2, 17.01.2019, p. 91-110.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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AB - Twelve genera and 19 species of deep-sea ostracods from the Shatsky Rise, north-western Pacific, were examined and illustrated for taxonomy. Three new species, Cytheropteron nasutum sp. nov., Poseidonamicus shatskyensis sp. nov. and Legitimocythere stellae sp. nov., are described. Based on these Shatsky Rise ostracods and a comprehensive literature survey of synonyms, we discuss global biogeography and possible migration pathways of deep-sea species. The four possible deep-water pathways connecting the Atlantic and Pacific Oceans are: the Drake Passage (Southern Ocean), established by 30 Ma; the Tethys Seaway, which had closed by 19–14 Ma; the Central American Seaway, which had closed by 3 Ma; and the Arctic Ocean Seaway via the Bering Strait, which opened about 4.8–7.4 Ma, and via the Fram Strait, which opened between 10 and 20 Ma. The Drake Passage is likely the major pathway. We argue that the Arctic was an important pathway for some deep-sea species before the mid-Pleistocene. Most deep-sea organisms have poor fossil records, and thus the rich fossil record of deep-sea ostracods is an ideal model system for the study of deep-time biogeography of deep-sea organisms. It may well be that other deep-sea organisms had similar palaeobiogeographical histories and patterns. http://zoobank.org/urn:lsid:zoobank.org:pub:3B70B7E5-04E0-4FF7-91EF-88CE1B199C8D. © 2017, © The Trustees of the Natural History Museum, London 2017. All rights reserved.

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Quaternary deep-sea ostracods from the north-western Pacific Ocean: global biogeography and Drake-Passage, Tethyan, Central American and Arctic pathways

Abstract

Bibliographical note

Funding

Research Keywords

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