Arcanodiscus saundersianus Goeyers & Van de Vijver 2020, sp. nov.
Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. http://phycobank.org/ 102320 Figs 97–115, 132–138 Etymology The species is named in honour of our colleague Dr Krystyna Saunders (Australian Nuclear Science and Technology Organisation, Kirrawee, Australia) to acknowledge her for her ec...
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ftzenodo:oai:zenodo.org:4329150 2023-06-06T11:46:20+02:00 Arcanodiscus saundersianus Goeyers & Van de Vijver 2020, sp. nov. Goeyers, Charlotte Vijver, Bart Van De 2020-07-30 https://zenodo.org/record/4329150 https://doi.org/10.5281/zenodo.4329150 unknown info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03E887AFFFC9FFC7AFCFFD9E80C26F2B doi:10.5852/ejt.2020.694 http://zenodo.org/record/3973347 http://publication.plazi.org/id/FFD1FFD7FFD8FFD4AE6BFF8084466D41 doi:10.5281/zenodo.3973568 doi:10.5281/zenodo.3973574 doi:10.5281/zenodo.4329149 https://zenodo.org/communities/biosyslit https://zenodo.org/record/4329150 https://doi.org/10.5281/zenodo.4329150 oai:zenodo.org:4329150 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Revision of the non-marine centric diatom flora (Bacillariophyta) of the sub-Antarctic Campbell Island (southern Pacific Ocean) with the descriptions of five new species, pp. 1-30 in European Journal of Taxonomy 694 18-20 Biodiversity Taxonomy Chromista Ochrophyta Bacillariophyceae Arcanodiscales Arcanodiscaceae Arcanodiscus Arcanodiscus saundersianus info:eu-repo/semantics/other publication-taxonomictreatment 2020 ftzenodo https://doi.org/10.5281/zenodo.432915010.5852/ejt.2020.69410.5281/zenodo.397356810.5281/zenodo.397357410.5281/zenodo.4329149 2023-04-13T20:50:23Z Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. http://phycobank.org/ 102320 Figs 97–115, 132–138 Etymology The species is named in honour of our colleague Dr Krystyna Saunders (Australian Nuclear Science and Technology Organisation, Kirrawee, Australia) to acknowledge her for her ecological and paleoecological diatom research on the sub-Antarctic islands in the Pacific Ocean. Material examined Holotype CAMPBELL ISLAND • sub-Antarctic region; sample BAS272; 26 Dec. 1969; D. Vitt leg.; BR-4581. Isotype CAMPBELL ISLAND • same collection data as for holotype; slide at University of Antwerp, Belgium; PLP-372. Description Light microscopy (Figs 97–115) Frustules broadly discoid, almost square to rectangular with broadly rounded edges and convex valve faces. Frustules often found attached to each other. Chains composed of more than 2 cells however never observed. Multiple discoid chloroplasts present. Girdle bands not discernible in LM. Valves rather strongly silicified, rounded with a thick mantle and convex, weakly domed valve face. Valve dimensions (n = 25): valve diameter 6–17.5 μm, frustule height (n = 10): 4.5–7.0 μm. Central area is a large, smooth, hyaline zone, 3.0–7.5 μm, 50–55% of the total valve diameter, surrounded by a more rugose, irregularly shaped, marginal zone where striae are difficult to distinguish. Visible processes lacking. Scanning electron microscopy (Figs 132–138) Frustules discoid with very heavily silicified valves, visible as a thick mantle (Figs 132, 137). Cingulum comprises several, narrow, very thin, non-perforated, open copulae (Fig. 132). Pars interior of the copulae clearly fimbriate giving the impression of perforations on the copulae when girdle not eroded (Figs 132, 133, arrows). Copulae clearly open, ligulate (Fig. 132, double arrows). Valve face with large, flat hyaline, clearly rounded central area, lacking areolae and any other ornamentation (Figs 134–136). Marginal zone gently sloping towards the mantle, entirely covered with rounded to slit-like areolae, ca ... Other/Unknown Material Antarc* Antarctic Zenodo Antarctic Campbell Island ENVELOPE(169.500,169.500,-52.500,-52.500) Pacific Saunders ENVELOPE(-45.316,-45.316,-60.700,-60.700) |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Chromista Ochrophyta Bacillariophyceae Arcanodiscales Arcanodiscaceae Arcanodiscus Arcanodiscus saundersianus |
spellingShingle |
Biodiversity Taxonomy Chromista Ochrophyta Bacillariophyceae Arcanodiscales Arcanodiscaceae Arcanodiscus Arcanodiscus saundersianus Goeyers, Charlotte Vijver, Bart Van De Arcanodiscus saundersianus Goeyers & Van de Vijver 2020, sp. nov. |
topic_facet |
Biodiversity Taxonomy Chromista Ochrophyta Bacillariophyceae Arcanodiscales Arcanodiscaceae Arcanodiscus Arcanodiscus saundersianus |
description |
Arcanodiscus saundersianus Goeyers & Van de Vijver sp. nov. http://phycobank.org/ 102320 Figs 97–115, 132–138 Etymology The species is named in honour of our colleague Dr Krystyna Saunders (Australian Nuclear Science and Technology Organisation, Kirrawee, Australia) to acknowledge her for her ecological and paleoecological diatom research on the sub-Antarctic islands in the Pacific Ocean. Material examined Holotype CAMPBELL ISLAND • sub-Antarctic region; sample BAS272; 26 Dec. 1969; D. Vitt leg.; BR-4581. Isotype CAMPBELL ISLAND • same collection data as for holotype; slide at University of Antwerp, Belgium; PLP-372. Description Light microscopy (Figs 97–115) Frustules broadly discoid, almost square to rectangular with broadly rounded edges and convex valve faces. Frustules often found attached to each other. Chains composed of more than 2 cells however never observed. Multiple discoid chloroplasts present. Girdle bands not discernible in LM. Valves rather strongly silicified, rounded with a thick mantle and convex, weakly domed valve face. Valve dimensions (n = 25): valve diameter 6–17.5 μm, frustule height (n = 10): 4.5–7.0 μm. Central area is a large, smooth, hyaline zone, 3.0–7.5 μm, 50–55% of the total valve diameter, surrounded by a more rugose, irregularly shaped, marginal zone where striae are difficult to distinguish. Visible processes lacking. Scanning electron microscopy (Figs 132–138) Frustules discoid with very heavily silicified valves, visible as a thick mantle (Figs 132, 137). Cingulum comprises several, narrow, very thin, non-perforated, open copulae (Fig. 132). Pars interior of the copulae clearly fimbriate giving the impression of perforations on the copulae when girdle not eroded (Figs 132, 133, arrows). Copulae clearly open, ligulate (Fig. 132, double arrows). Valve face with large, flat hyaline, clearly rounded central area, lacking areolae and any other ornamentation (Figs 134–136). Marginal zone gently sloping towards the mantle, entirely covered with rounded to slit-like areolae, ca ... |
format |
Other/Unknown Material |
author |
Goeyers, Charlotte Vijver, Bart Van De |
author_facet |
Goeyers, Charlotte Vijver, Bart Van De |
author_sort |
Goeyers, Charlotte |
title |
Arcanodiscus saundersianus Goeyers & Van de Vijver 2020, sp. nov. |
title_short |
Arcanodiscus saundersianus Goeyers & Van de Vijver 2020, sp. nov. |
title_full |
Arcanodiscus saundersianus Goeyers & Van de Vijver 2020, sp. nov. |
title_fullStr |
Arcanodiscus saundersianus Goeyers & Van de Vijver 2020, sp. nov. |
title_full_unstemmed |
Arcanodiscus saundersianus Goeyers & Van de Vijver 2020, sp. nov. |
title_sort |
arcanodiscus saundersianus goeyers & van de vijver 2020, sp. nov. |
publishDate |
2020 |
url |
https://zenodo.org/record/4329150 https://doi.org/10.5281/zenodo.4329150 |
long_lat |
ENVELOPE(169.500,169.500,-52.500,-52.500) ENVELOPE(-45.316,-45.316,-60.700,-60.700) |
geographic |
Antarctic Campbell Island Pacific Saunders |
geographic_facet |
Antarctic Campbell Island Pacific Saunders |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Revision of the non-marine centric diatom flora (Bacillariophyta) of the sub-Antarctic Campbell Island (southern Pacific Ocean) with the descriptions of five new species, pp. 1-30 in European Journal of Taxonomy 694 18-20 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03E887AFFFC9FFC7AFCFFD9E80C26F2B doi:10.5852/ejt.2020.694 http://zenodo.org/record/3973347 http://publication.plazi.org/id/FFD1FFD7FFD8FFD4AE6BFF8084466D41 doi:10.5281/zenodo.3973568 doi:10.5281/zenodo.3973574 doi:10.5281/zenodo.4329149 https://zenodo.org/communities/biosyslit https://zenodo.org/record/4329150 https://doi.org/10.5281/zenodo.4329150 oai:zenodo.org:4329150 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.432915010.5852/ejt.2020.69410.5281/zenodo.397356810.5281/zenodo.397357410.5281/zenodo.4329149 |
_version_ |
1767951607944708096 |