Turrisphaera undetermined
Turrisphaera sp. (Figs 33–37) Cells reminiscent of P. sagittifera HOL (syn. Turrisphaera borealis ) have been regularly encountered in Antarctic samples and were expected to eventually appear as the life cycle counterpart of Antarctic P. sagittifera cfr. The cells illustrated here originate from the...
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ftzenodo:oai:zenodo.org:12534993 2024-09-15T17:48:25+00:00 Turrisphaera undetermined Thomsen, Helge A. Østergaard, Jette B. Heldal, Mikal 2016-12-31 https://doi.org/10.5281/zenodo.12534993 http://treatment.plazi.org/id/03EB512EFF91FF8DFCA07C4E9798B632 unknown Zenodo https://doi.org/10.4467/16890027AP.16.005.4046 http://zenodo.org/record/10994318 http://publication.plazi.org/id/FFD22956FF9AFF86FF897E68930BB35C https://sibils.text-analytics.ch/search/collections/plazi/03EB512EFF91FF8DFCA07C4E9798B632 https://doi.org/10.5281/zenodo.12534740 https://doi.org/10.5281/zenodo.10994328 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.12534992 https://doi.org/10.5281/zenodo.12534993 oai:zenodo.org:12534993 http://treatment.plazi.org/id/03EB512EFF91FF8DFCA07C4E9798B632 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Coccolithophores in Polar Waters: HOL Revisited Papposphaera sagittifera HET and, pp. 33-50 in Acta Protozoologica, 55(1), 44, (2016-12-31) Biodiversity Taxonomy Chromista Haptophyta Coccolithophyceae Coccosphaerales Calyptrosphaeraceae Turrisphaera Turrisphaera undetermined info:eu-repo/semantics/other 2016 ftzenodo https://doi.org/10.5281/zenodo.1253499310.4467/16890027AP.16.005.404610.5281/zenodo.1253474010.5281/zenodo.1099432810.5281/zenodo.12534992 2024-07-26T14:29:01Z Turrisphaera sp. (Figs 33–37) Cells reminiscent of P. sagittifera HOL (syn. Turrisphaera borealis ) have been regularly encountered in Antarctic samples and were expected to eventually appear as the life cycle counterpart of Antarctic P. sagittifera cfr. The cells illustrated here originate from the Weddell Sea (EPOS) and display the typical cell coverage of symmetrical and tower-shaped holococcoliths that are flaring at both ends. Crystallographic features (Figs 35–36) are also consistent with those of P. sagittifera HOL. Our main hesitation to up front identify the Antarctic material as P. sagittifera HOL is due to the fact that the individual holococcoliths are shorter (1.2–1.5 µm) and slightly more narrow (ca. 0.4 µm) and also accordingly have fewer hexagonal plates across the coccolith. The overall appearance of the Antarctic material is thus somewhat different from the Arctic P. sagittifera HOL (compare e.g. Figs 24 and 34). It should also be emphasized that we have at present no evidence from Antarctic waters of life cycle events that involves this particular form. We therefore prefer for the time being simply to refer to this material as Turrisphaera sp. Without molecular evidence it is hardly possible to take a different approach right now. Published as part of Thomsen, Helge A., Østergaard, Jette B. & Heldal, Mikal, 2016, Coccolithophores in Polar Waters: HOL Revisited Papposphaera sagittifera HET and, pp. 33-50 in Acta Protozoologica 55 (1) on page 44, DOI:10.4467/16890027AP.16.005.4046, http://zenodo.org/record/10994318 Other/Unknown Material Antarc* Antarctic Weddell Sea Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Chromista Haptophyta Coccolithophyceae Coccosphaerales Calyptrosphaeraceae Turrisphaera Turrisphaera undetermined |
spellingShingle |
Biodiversity Taxonomy Chromista Haptophyta Coccolithophyceae Coccosphaerales Calyptrosphaeraceae Turrisphaera Turrisphaera undetermined Thomsen, Helge A. Østergaard, Jette B. Heldal, Mikal Turrisphaera undetermined |
topic_facet |
Biodiversity Taxonomy Chromista Haptophyta Coccolithophyceae Coccosphaerales Calyptrosphaeraceae Turrisphaera Turrisphaera undetermined |
description |
Turrisphaera sp. (Figs 33–37) Cells reminiscent of P. sagittifera HOL (syn. Turrisphaera borealis ) have been regularly encountered in Antarctic samples and were expected to eventually appear as the life cycle counterpart of Antarctic P. sagittifera cfr. The cells illustrated here originate from the Weddell Sea (EPOS) and display the typical cell coverage of symmetrical and tower-shaped holococcoliths that are flaring at both ends. Crystallographic features (Figs 35–36) are also consistent with those of P. sagittifera HOL. Our main hesitation to up front identify the Antarctic material as P. sagittifera HOL is due to the fact that the individual holococcoliths are shorter (1.2–1.5 µm) and slightly more narrow (ca. 0.4 µm) and also accordingly have fewer hexagonal plates across the coccolith. The overall appearance of the Antarctic material is thus somewhat different from the Arctic P. sagittifera HOL (compare e.g. Figs 24 and 34). It should also be emphasized that we have at present no evidence from Antarctic waters of life cycle events that involves this particular form. We therefore prefer for the time being simply to refer to this material as Turrisphaera sp. Without molecular evidence it is hardly possible to take a different approach right now. Published as part of Thomsen, Helge A., Østergaard, Jette B. & Heldal, Mikal, 2016, Coccolithophores in Polar Waters: HOL Revisited Papposphaera sagittifera HET and, pp. 33-50 in Acta Protozoologica 55 (1) on page 44, DOI:10.4467/16890027AP.16.005.4046, http://zenodo.org/record/10994318 |
format |
Other/Unknown Material |
author |
Thomsen, Helge A. Østergaard, Jette B. Heldal, Mikal |
author_facet |
Thomsen, Helge A. Østergaard, Jette B. Heldal, Mikal |
author_sort |
Thomsen, Helge A. |
title |
Turrisphaera undetermined |
title_short |
Turrisphaera undetermined |
title_full |
Turrisphaera undetermined |
title_fullStr |
Turrisphaera undetermined |
title_full_unstemmed |
Turrisphaera undetermined |
title_sort |
turrisphaera undetermined |
publisher |
Zenodo |
publishDate |
2016 |
url |
https://doi.org/10.5281/zenodo.12534993 http://treatment.plazi.org/id/03EB512EFF91FF8DFCA07C4E9798B632 |
genre |
Antarc* Antarctic Weddell Sea |
genre_facet |
Antarc* Antarctic Weddell Sea |
op_source |
Coccolithophores in Polar Waters: HOL Revisited Papposphaera sagittifera HET and, pp. 33-50 in Acta Protozoologica, 55(1), 44, (2016-12-31) |
op_relation |
https://doi.org/10.4467/16890027AP.16.005.4046 http://zenodo.org/record/10994318 http://publication.plazi.org/id/FFD22956FF9AFF86FF897E68930BB35C https://sibils.text-analytics.ch/search/collections/plazi/03EB512EFF91FF8DFCA07C4E9798B632 https://doi.org/10.5281/zenodo.12534740 https://doi.org/10.5281/zenodo.10994328 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.12534992 https://doi.org/10.5281/zenodo.12534993 oai:zenodo.org:12534993 http://treatment.plazi.org/id/03EB512EFF91FF8DFCA07C4E9798B632 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.1253499310.4467/16890027AP.16.005.404610.5281/zenodo.1253474010.5281/zenodo.1099432810.5281/zenodo.12534992 |
_version_ |
1810289610333356032 |