Trigonaspis Thomsen 1980
Trigonaspis Thomsen 1980a The original description of this holococcolithophorid genus as reproduced below was based on material from West Greenland: Small biflagellate coccolithophorids with a short haptonema. Periplast composed of coccoliths which are tower-like near the flagellar pole. Coccolith c...
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ftzenodo:oai:zenodo.org:12637886 2024-09-15T17:46:15+00:00 Trigonaspis Thomsen 1980 Thomsen, Helge A. Østergaard, Jette B. 2015-12-31 https://doi.org/10.5281/zenodo.12637886 http://treatment.plazi.org/id/03D8878EFFA0C57B5236FBCF7F48FA1F unknown Zenodo https://doi.org/10.4467/16890027AP.15.007.2732 http://zenodo.org/record/12638290 http://publication.plazi.org/id/FFE1FFF6FFA1C579511FFFE37A3DFB7E https://sibils.text-analytics.ch/search/collections/plazi/03D8878EFFA0C57B5236FBCF7F48FA1F https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.12637885 https://doi.org/10.5281/zenodo.12637886 oai:zenodo.org:12637886 http://treatment.plazi.org/id/03D8878EFFA0C57B5236FBCF7F48FA1F info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Coccolithophorids in Polar Waters: Trigonaspis spp. Revisited, pp. 85-96 in Acta Protozoologica, 54(2), 86-87, (2015-12-31) Biodiversity Taxonomy Chromista Haptophyta Coccolithophyceae Coccosphaerales Papposphaeraceae Trigonaspis info:eu-repo/semantics/other 2015 ftzenodo https://doi.org/10.5281/zenodo.1263788610.4467/16890027AP.15.007.273210.5281/zenodo.12637885 2024-07-26T08:55:47Z Trigonaspis Thomsen 1980a The original description of this holococcolithophorid genus as reproduced below was based on material from West Greenland: Small biflagellate coccolithophorids with a short haptonema. Periplast composed of coccoliths which are tower-like near the flagellar pole. Coccolith crystallites small triangular plates composed of three subunits. Small organic scales, always unmineralized, appear below the coccolith base-plates. Type species: Trigonaspis diskoensis The key characteristics are dimorphic (occasionally varimorphic) coccoliths that involves a tuft of tower-shaped coccoliths encircling the flagellar pole, and above all the monolayer of triangular crystallite groups that cover all coccolith surfaces. The most closely related genus is Turrisphaera Manton et al. 1976b which is distinguished from Trigonaspis based on the presence of hexangular rather than triangular crystallite groups. Circumstantial evidence in support of this distinction has subsequently come from the discovery of combination cells (Thomsen et al. 1991) where Papposphaera spp. share a common life history with Turrisphaera spp., while species of Trigonaspis interact with species of Pappomonas (see also Thomsen and Østergaard 2014b). Three species of Trigonaspis , viz. T. diskoensis Thomsen, 1980a, T. minutissima Thomsen, 1980a and T. melvillea Thomsen in Thomsen et al . (1988) have been described so far. A fourth species ( Pappomonas garrisonii HOL = Trigonaspis sp.) is illustrated and discussed here based on material from the Antarctic. Published as part of Thomsen, Helge A. & Østergaard, Jette B., 2015, Coccolithophorids in Polar Waters: Trigonaspis spp. Revisited, pp. 85-96 in Acta Protozoologica 54 (2) on pages 86-87, DOI:10.4467/16890027AP.15.007.2732, http://zenodo.org/record/12638290 Other/Unknown Material Antarc* Antarctic Greenland Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Chromista Haptophyta Coccolithophyceae Coccosphaerales Papposphaeraceae Trigonaspis |
spellingShingle |
Biodiversity Taxonomy Chromista Haptophyta Coccolithophyceae Coccosphaerales Papposphaeraceae Trigonaspis Thomsen, Helge A. Østergaard, Jette B. Trigonaspis Thomsen 1980 |
topic_facet |
Biodiversity Taxonomy Chromista Haptophyta Coccolithophyceae Coccosphaerales Papposphaeraceae Trigonaspis |
description |
Trigonaspis Thomsen 1980a The original description of this holococcolithophorid genus as reproduced below was based on material from West Greenland: Small biflagellate coccolithophorids with a short haptonema. Periplast composed of coccoliths which are tower-like near the flagellar pole. Coccolith crystallites small triangular plates composed of three subunits. Small organic scales, always unmineralized, appear below the coccolith base-plates. Type species: Trigonaspis diskoensis The key characteristics are dimorphic (occasionally varimorphic) coccoliths that involves a tuft of tower-shaped coccoliths encircling the flagellar pole, and above all the monolayer of triangular crystallite groups that cover all coccolith surfaces. The most closely related genus is Turrisphaera Manton et al. 1976b which is distinguished from Trigonaspis based on the presence of hexangular rather than triangular crystallite groups. Circumstantial evidence in support of this distinction has subsequently come from the discovery of combination cells (Thomsen et al. 1991) where Papposphaera spp. share a common life history with Turrisphaera spp., while species of Trigonaspis interact with species of Pappomonas (see also Thomsen and Østergaard 2014b). Three species of Trigonaspis , viz. T. diskoensis Thomsen, 1980a, T. minutissima Thomsen, 1980a and T. melvillea Thomsen in Thomsen et al . (1988) have been described so far. A fourth species ( Pappomonas garrisonii HOL = Trigonaspis sp.) is illustrated and discussed here based on material from the Antarctic. Published as part of Thomsen, Helge A. & Østergaard, Jette B., 2015, Coccolithophorids in Polar Waters: Trigonaspis spp. Revisited, pp. 85-96 in Acta Protozoologica 54 (2) on pages 86-87, DOI:10.4467/16890027AP.15.007.2732, http://zenodo.org/record/12638290 |
format |
Other/Unknown Material |
author |
Thomsen, Helge A. Østergaard, Jette B. |
author_facet |
Thomsen, Helge A. Østergaard, Jette B. |
author_sort |
Thomsen, Helge A. |
title |
Trigonaspis Thomsen 1980 |
title_short |
Trigonaspis Thomsen 1980 |
title_full |
Trigonaspis Thomsen 1980 |
title_fullStr |
Trigonaspis Thomsen 1980 |
title_full_unstemmed |
Trigonaspis Thomsen 1980 |
title_sort |
trigonaspis thomsen 1980 |
publisher |
Zenodo |
publishDate |
2015 |
url |
https://doi.org/10.5281/zenodo.12637886 http://treatment.plazi.org/id/03D8878EFFA0C57B5236FBCF7F48FA1F |
genre |
Antarc* Antarctic Greenland |
genre_facet |
Antarc* Antarctic Greenland |
op_source |
Coccolithophorids in Polar Waters: Trigonaspis spp. Revisited, pp. 85-96 in Acta Protozoologica, 54(2), 86-87, (2015-12-31) |
op_relation |
https://doi.org/10.4467/16890027AP.15.007.2732 http://zenodo.org/record/12638290 http://publication.plazi.org/id/FFE1FFF6FFA1C579511FFFE37A3DFB7E https://sibils.text-analytics.ch/search/collections/plazi/03D8878EFFA0C57B5236FBCF7F48FA1F https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.12637885 https://doi.org/10.5281/zenodo.12637886 oai:zenodo.org:12637886 http://treatment.plazi.org/id/03D8878EFFA0C57B5236FBCF7F48FA1F |
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.1263788610.4467/16890027AP.15.007.273210.5281/zenodo.12637885 |
_version_ |
1810494254639742976 |