Thyasirid bivalves from Cretaceous and Paleogene cold seeps
We present a systematic study of thyasirid bivalves from Cretaceous to Oligocene seep carbonates worldwide. Eleven species of thyasirid bivalves are identified belonging to three genera: Conchocele, Maorithyas, and Thyasira. Two species are new: Maorithyas humptulipsensis sp. nov. from middle Eocene...
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ftdoajarticles:oai:doaj.org/article:00dd2d1a4a1542f493158aebe4f9257c 2023-05-15T13:52:40+02:00 Thyasirid bivalves from Cretaceous and Paleogene cold seeps Krzysztof Hryniewicz Kazutaka Amano Robert G. Jenkins Steffen Kiel 2017-11-01T00:00:00Z https://doi.org/10.4202/app.00390.2017 https://doaj.org/article/00dd2d1a4a1542f493158aebe4f9257c EN eng Institute of Paleobiology PAS https://doaj.org/toc/0567-7920 https://doaj.org/toc/1732-2421 doi:10.4202/app.00390.2017 0567-7920 1732-2421 https://doaj.org/article/00dd2d1a4a1542f493158aebe4f9257c Acta Palaeontologica Polonica, Vol 62, Iss 4, Pp 705-728 (2017) Bivalvia Thyasiridae cold seeps deep sea ecology evolution Cretaceous Paleogene Fossil man. Human paleontology GN282-286.7 Paleontology QE701-760 article 2017 ftdoajarticles https://doi.org/10.4202/app.00390.2017 2022-12-31T00:43:03Z We present a systematic study of thyasirid bivalves from Cretaceous to Oligocene seep carbonates worldwide. Eleven species of thyasirid bivalves are identified belonging to three genera: Conchocele, Maorithyas, and Thyasira. Two species are new: Maorithyas humptulipsensis sp. nov. from middle Eocene seep carbonates in the Humptulips Formation, Washington State, USA, and Conchocele kiritachiensis sp. nov. from the late Eocene seep deposit at Kiritachi, Hokkaido, Japan. Two new combinations are provided: Conchocele townsendi (White, 1890) from Maastrichtian strata of the James Ross Basin, Antarctica, and Maorithyas folgeri (Wagner and Schilling, 1923) from Oligocene rocks from California, USA. Three species are left in open nomenclature. We show that thyasirids have Mesozoic origins and appear at seeps before appearing in “normal” marine environments. These data are interpreted as a record of seep origination of thyasirids, and their subsequent dispersal to non-seep environments. We discuss the age of origination of thyasirids in the context of the origin of the modern deep sea fauna and conclude that thyasirids could have deep sea origins. This hypothesis is supported by the observed lack of influence of the Cretaceous and Paleogene Oceanic Anoxic Events on the main evolutionary lineages of the thyasirids, as seen in several other members of the deep sea fauna. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles Acta Palaeontologica Polonica 62 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Bivalvia Thyasiridae cold seeps deep sea ecology evolution Cretaceous Paleogene Fossil man. Human paleontology GN282-286.7 Paleontology QE701-760 |
spellingShingle |
Bivalvia Thyasiridae cold seeps deep sea ecology evolution Cretaceous Paleogene Fossil man. Human paleontology GN282-286.7 Paleontology QE701-760 Krzysztof Hryniewicz Kazutaka Amano Robert G. Jenkins Steffen Kiel Thyasirid bivalves from Cretaceous and Paleogene cold seeps |
topic_facet |
Bivalvia Thyasiridae cold seeps deep sea ecology evolution Cretaceous Paleogene Fossil man. Human paleontology GN282-286.7 Paleontology QE701-760 |
description |
We present a systematic study of thyasirid bivalves from Cretaceous to Oligocene seep carbonates worldwide. Eleven species of thyasirid bivalves are identified belonging to three genera: Conchocele, Maorithyas, and Thyasira. Two species are new: Maorithyas humptulipsensis sp. nov. from middle Eocene seep carbonates in the Humptulips Formation, Washington State, USA, and Conchocele kiritachiensis sp. nov. from the late Eocene seep deposit at Kiritachi, Hokkaido, Japan. Two new combinations are provided: Conchocele townsendi (White, 1890) from Maastrichtian strata of the James Ross Basin, Antarctica, and Maorithyas folgeri (Wagner and Schilling, 1923) from Oligocene rocks from California, USA. Three species are left in open nomenclature. We show that thyasirids have Mesozoic origins and appear at seeps before appearing in “normal” marine environments. These data are interpreted as a record of seep origination of thyasirids, and their subsequent dispersal to non-seep environments. We discuss the age of origination of thyasirids in the context of the origin of the modern deep sea fauna and conclude that thyasirids could have deep sea origins. This hypothesis is supported by the observed lack of influence of the Cretaceous and Paleogene Oceanic Anoxic Events on the main evolutionary lineages of the thyasirids, as seen in several other members of the deep sea fauna. |
format |
Article in Journal/Newspaper |
author |
Krzysztof Hryniewicz Kazutaka Amano Robert G. Jenkins Steffen Kiel |
author_facet |
Krzysztof Hryniewicz Kazutaka Amano Robert G. Jenkins Steffen Kiel |
author_sort |
Krzysztof Hryniewicz |
title |
Thyasirid bivalves from Cretaceous and Paleogene cold seeps |
title_short |
Thyasirid bivalves from Cretaceous and Paleogene cold seeps |
title_full |
Thyasirid bivalves from Cretaceous and Paleogene cold seeps |
title_fullStr |
Thyasirid bivalves from Cretaceous and Paleogene cold seeps |
title_full_unstemmed |
Thyasirid bivalves from Cretaceous and Paleogene cold seeps |
title_sort |
thyasirid bivalves from cretaceous and paleogene cold seeps |
publisher |
Institute of Paleobiology PAS |
publishDate |
2017 |
url |
https://doi.org/10.4202/app.00390.2017 https://doaj.org/article/00dd2d1a4a1542f493158aebe4f9257c |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Acta Palaeontologica Polonica, Vol 62, Iss 4, Pp 705-728 (2017) |
op_relation |
https://doaj.org/toc/0567-7920 https://doaj.org/toc/1732-2421 doi:10.4202/app.00390.2017 0567-7920 1732-2421 https://doaj.org/article/00dd2d1a4a1542f493158aebe4f9257c |
op_doi |
https://doi.org/10.4202/app.00390.2017 |
container_title |
Acta Palaeontologica Polonica |
container_volume |
62 |
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1766257101201473536 |