Cold-seep ostracods from the western Svalbard margin: direct palaeo-indicator for methane seepage?
Despite their high abundance and diversity, microfossil taxa adapted to a particular chemosynthetic environment have rarely been studied and are therefore poorly known. Here we report on an ostracod species, Rosaliella svalbardensis gen. et sp. nov., from a cold methane seep site at the western Sval...
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ftcopernicus:oai:publications.copernicus.org:jm59924 2023-05-15T16:18:06+02:00 Cold-seep ostracods from the western Svalbard margin: direct palaeo-indicator for methane seepage? Yasuhara, Moriaki Sztybor, Kamila Rasmussen, Tine L. Okahashi, Hisayo Sato, Runa Tanaka, Hayato 2018-09-27 application/pdf https://doi.org/10.5194/jm-37-139-2018 https://jm.copernicus.org/articles/37/139/2018/ eng eng doi:10.5194/jm-37-139-2018 https://jm.copernicus.org/articles/37/139/2018/ eISSN: 2041-4978 Text 2018 ftcopernicus https://doi.org/10.5194/jm-37-139-2018 2020-07-20T16:23:29Z Despite their high abundance and diversity, microfossil taxa adapted to a particular chemosynthetic environment have rarely been studied and are therefore poorly known. Here we report on an ostracod species, Rosaliella svalbardensis gen. et sp. nov., from a cold methane seep site at the western Svalbard margin, Fram Strait. The new species shows a distinct morphology, different from other eucytherurine ostracod genera. It has a marked similarity to Xylocythere , an ostracod genus known from chemosynthetic environments of wood falls and hydrothermal vents. Rosaliella svalbardensis is probably an endemic species or genus linked to methane seeps. We speculate that the surface ornamentation of pore clusters, secondary reticulation, and pit clusters may be related to ectosymbiosis with chemoautotrophic bacteria. This new discovery of specialized microfossil taxa is important because they can be used as an indicator species for past and present seep environments ( http://zoobank.org/urn:lsid:zoobank.org:pub:6075FF30-29D5-4DAB-9141-AE722CD3A69B ). Text Fram Strait Svalbard Svalbard margin Copernicus Publications: E-Journals Svalbard Journal of Micropalaeontology 37 1 139 148 |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
Despite their high abundance and diversity, microfossil taxa adapted to a particular chemosynthetic environment have rarely been studied and are therefore poorly known. Here we report on an ostracod species, Rosaliella svalbardensis gen. et sp. nov., from a cold methane seep site at the western Svalbard margin, Fram Strait. The new species shows a distinct morphology, different from other eucytherurine ostracod genera. It has a marked similarity to Xylocythere , an ostracod genus known from chemosynthetic environments of wood falls and hydrothermal vents. Rosaliella svalbardensis is probably an endemic species or genus linked to methane seeps. We speculate that the surface ornamentation of pore clusters, secondary reticulation, and pit clusters may be related to ectosymbiosis with chemoautotrophic bacteria. This new discovery of specialized microfossil taxa is important because they can be used as an indicator species for past and present seep environments ( http://zoobank.org/urn:lsid:zoobank.org:pub:6075FF30-29D5-4DAB-9141-AE722CD3A69B ). |
format |
Text |
author |
Yasuhara, Moriaki Sztybor, Kamila Rasmussen, Tine L. Okahashi, Hisayo Sato, Runa Tanaka, Hayato |
spellingShingle |
Yasuhara, Moriaki Sztybor, Kamila Rasmussen, Tine L. Okahashi, Hisayo Sato, Runa Tanaka, Hayato Cold-seep ostracods from the western Svalbard margin: direct palaeo-indicator for methane seepage? |
author_facet |
Yasuhara, Moriaki Sztybor, Kamila Rasmussen, Tine L. Okahashi, Hisayo Sato, Runa Tanaka, Hayato |
author_sort |
Yasuhara, Moriaki |
title |
Cold-seep ostracods from the western Svalbard margin: direct palaeo-indicator for methane seepage? |
title_short |
Cold-seep ostracods from the western Svalbard margin: direct palaeo-indicator for methane seepage? |
title_full |
Cold-seep ostracods from the western Svalbard margin: direct palaeo-indicator for methane seepage? |
title_fullStr |
Cold-seep ostracods from the western Svalbard margin: direct palaeo-indicator for methane seepage? |
title_full_unstemmed |
Cold-seep ostracods from the western Svalbard margin: direct palaeo-indicator for methane seepage? |
title_sort |
cold-seep ostracods from the western svalbard margin: direct palaeo-indicator for methane seepage? |
publishDate |
2018 |
url |
https://doi.org/10.5194/jm-37-139-2018 https://jm.copernicus.org/articles/37/139/2018/ |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
Fram Strait Svalbard Svalbard margin |
genre_facet |
Fram Strait Svalbard Svalbard margin |
op_source |
eISSN: 2041-4978 |
op_relation |
doi:10.5194/jm-37-139-2018 https://jm.copernicus.org/articles/37/139/2018/ |
op_doi |
https://doi.org/10.5194/jm-37-139-2018 |
container_title |
Journal of Micropalaeontology |
container_volume |
37 |
container_issue |
1 |
container_start_page |
139 |
op_container_end_page |
148 |
_version_ |
1766004225846804480 |