Re-evaluation of the systematics of two deep-sea species of Thalassometra (Echinomermata: Crinoidea) and its biogeographical implications
Biogeography of deep-sea comatulid crinoids is poorly understood owing partly to the lack of detailed taxonomic studies. Recent cruises off Peru dredged up two new, well-preserved specimens of Thalassometra bispinosa, a deep-sea comatulid species which was heretofore only known from the Southern Oce...
Published in: | Journal of Natural History |
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Format: | Article in Journal/Newspaper |
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Online Access: | https://doi.org/10.1080/0022290310001613566 https://hal.archives-ouvertes.fr/hal-00164911 |
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fttriple:oai:gotriple.eu:10670/1.tcrpsj 2023-05-15T18:24:57+02:00 Re-evaluation of the systematics of two deep-sea species of Thalassometra (Echinomermata: Crinoidea) and its biogeographical implications Eléaume, Marc Améziane, Nadia Park, Young-Hyang Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) 2004-01-01 https://doi.org/10.1080/0022290310001613566 https://hal.archives-ouvertes.fr/hal-00164911 en eng HAL CCSD Taylor & Francis hal-00164911 doi:10.1080/0022290310001613566 10670/1.tcrpsj https://hal.archives-ouvertes.fr/hal-00164911 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0022-2933 EISSN: 1464-5262 Journal of Natural History Journal of Natural History, Taylor & Francis, 2004, 38 (15), pp.1949-1968. ⟨10.1080/0022290310001613566⟩ geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2004 fttriple https://doi.org/10.1080/0022290310001613566 2023-01-22T16:50:52Z Biogeography of deep-sea comatulid crinoids is poorly understood owing partly to the lack of detailed taxonomic studies. Recent cruises off Peru dredged up two new, well-preserved specimens of Thalassometra bispinosa, a deep-sea comatulid species which was heretofore only known from the Southern Ocean. These new records enabled re-evaluation of intra-specific variation for both quantitative and qualitative morphological characters. We thus provide a new description of the species, including these new specimens, and discuss the affinities with closely related species. As a consequence, we re-evaluate the systematic position of material previously assigned to T. bispinosa dredged from the Campbell Plateau, Southern Ocean. Discrete morphological characters, measurements and SEM photographs justify reassignment of these specimens to Thalassometra villosa. This species, another poorly known deep-sea comatulid crinoid previously known only from the Aleutian Islands in the North Pacific, is also redescribed. The biogeography of these two deep-sea comatulid species is discussed and hypotheses of their geographical distribution are proposed. Article in Journal/Newspaper Southern Ocean Aleutian Islands Unknown Campbell Plateau ENVELOPE(171.000,171.000,-50.667,-50.667) Pacific Southern Ocean Journal of Natural History 38 15 1949 1968 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo envir |
spellingShingle |
geo envir Eléaume, Marc Améziane, Nadia Park, Young-Hyang Re-evaluation of the systematics of two deep-sea species of Thalassometra (Echinomermata: Crinoidea) and its biogeographical implications |
topic_facet |
geo envir |
description |
Biogeography of deep-sea comatulid crinoids is poorly understood owing partly to the lack of detailed taxonomic studies. Recent cruises off Peru dredged up two new, well-preserved specimens of Thalassometra bispinosa, a deep-sea comatulid species which was heretofore only known from the Southern Ocean. These new records enabled re-evaluation of intra-specific variation for both quantitative and qualitative morphological characters. We thus provide a new description of the species, including these new specimens, and discuss the affinities with closely related species. As a consequence, we re-evaluate the systematic position of material previously assigned to T. bispinosa dredged from the Campbell Plateau, Southern Ocean. Discrete morphological characters, measurements and SEM photographs justify reassignment of these specimens to Thalassometra villosa. This species, another poorly known deep-sea comatulid crinoid previously known only from the Aleutian Islands in the North Pacific, is also redescribed. The biogeography of these two deep-sea comatulid species is discussed and hypotheses of their geographical distribution are proposed. |
author2 |
Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Eléaume, Marc Améziane, Nadia Park, Young-Hyang |
author_facet |
Eléaume, Marc Améziane, Nadia Park, Young-Hyang |
author_sort |
Eléaume, Marc |
title |
Re-evaluation of the systematics of two deep-sea species of Thalassometra (Echinomermata: Crinoidea) and its biogeographical implications |
title_short |
Re-evaluation of the systematics of two deep-sea species of Thalassometra (Echinomermata: Crinoidea) and its biogeographical implications |
title_full |
Re-evaluation of the systematics of two deep-sea species of Thalassometra (Echinomermata: Crinoidea) and its biogeographical implications |
title_fullStr |
Re-evaluation of the systematics of two deep-sea species of Thalassometra (Echinomermata: Crinoidea) and its biogeographical implications |
title_full_unstemmed |
Re-evaluation of the systematics of two deep-sea species of Thalassometra (Echinomermata: Crinoidea) and its biogeographical implications |
title_sort |
re-evaluation of the systematics of two deep-sea species of thalassometra (echinomermata: crinoidea) and its biogeographical implications |
publisher |
HAL CCSD |
publishDate |
2004 |
url |
https://doi.org/10.1080/0022290310001613566 https://hal.archives-ouvertes.fr/hal-00164911 |
long_lat |
ENVELOPE(171.000,171.000,-50.667,-50.667) |
geographic |
Campbell Plateau Pacific Southern Ocean |
geographic_facet |
Campbell Plateau Pacific Southern Ocean |
genre |
Southern Ocean Aleutian Islands |
genre_facet |
Southern Ocean Aleutian Islands |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0022-2933 EISSN: 1464-5262 Journal of Natural History Journal of Natural History, Taylor & Francis, 2004, 38 (15), pp.1949-1968. ⟨10.1080/0022290310001613566⟩ |
op_relation |
hal-00164911 doi:10.1080/0022290310001613566 10670/1.tcrpsj https://hal.archives-ouvertes.fr/hal-00164911 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1080/0022290310001613566 |
container_title |
Journal of Natural History |
container_volume |
38 |
container_issue |
15 |
container_start_page |
1949 |
op_container_end_page |
1968 |
_version_ |
1766206007534419968 |