Clarella Howell 1933
Genus Clarella Howell, 1933 Clarella Howell, 1933: 219. — Type species: Anapolenus venustus Billings, 1872, designated as lectotype by Howell (1933). DIAGNOSIS. — Glabella with great forward expansion anterior of S1; palpebral lobes slightly sigmoidal, reaching almost genal angle; thorax with 15 seg...
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ftzenodo:oai:zenodo.org:7477308 2024-09-15T18:20:07+00:00 Clarella Howell 1933 Unger, Tanja Hildenbrand, Anne Stinnesbeck, Wolfgang Austermann, Gregor 2022-12-15 https://doi.org/10.5281/zenodo.7477308 http://treatment.plazi.org/id/03DA87B6FF8D4956FE827BEEFE4AFA01 unknown Zenodo https://doi.org/10.5252/geodiversitas2022v44a33 http://zenodo.org/record/7477657 http://publication.plazi.org/id/FFE3FFCEFF97494CFFAA7878FFDCFFC1 https://sibils.text-analytics.ch/search/collections/plazi/03DA87B6FF8D4956FE827BEEFE4AFA01 https://www.gbif.org/species/207934021 https://www.checklistbank.org/dataset/56143/taxon/03DA87B6FF8D4956FE827BEEFE4AFA01.taxon http://zoobank.org/urn:lsid:zoobank.org:pub:4DA9802D-9500-4FD8-96F5-F4DD3BBF56A3 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.7477307 https://doi.org/10.5281/zenodo.7477308 oai:zenodo.org:7477308 http://treatment.plazi.org/id/03DA87B6FF8D4956FE827BEEFE4AFA01 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Biostratigraphy and taxonomy of polymerid trilobites of the Manuels River Formation (Drumian, middle Cambrian), Newfoundland, Canada, pp. 1051-1087 in Geodiversitas, 44(33), 1075, (2022-12-15) Biodiversity Taxonomy Animalia Arthropoda Trilobita Redlichiida Centropleuridae Clarella info:eu-repo/semantics/other 2022 ftzenodo https://doi.org/10.5281/zenodo.747730810.5252/geodiversitas2022v44a3310.5281/zenodo.7477307 2024-07-25T12:25:54Z Genus Clarella Howell, 1933 Clarella Howell, 1933: 219. — Type species: Anapolenus venustus Billings, 1872, designated as lectotype by Howell (1933). DIAGNOSIS. — Glabella with great forward expansion anterior of S1; palpebral lobes slightly sigmoidal, reaching almost genal angle; thorax with 15 segments; pygidium without border, up to four pairs of marginal spines; short axis with one to two axial rings (based on Howell 1933; Whittington et al. 1997, with modifications). REMARKS Clarella is distinguished from Anapolenus Salter, 1864a by sigmoidally shaped palpebral lobes that almost reach the genal angle. The palpebral lobes of Anapolenus curve in a uniform arc, reaching the genal angle. The pygidium of Clarella lacks a border, while that of Anapolenus is bordered (Howell 1933; Whittington et al. 1997). Published as part of Unger, Tanja, Hildenbrand, Anne, Stinnesbeck, Wolfgang & Austermann, Gregor, 2022, Biostratigraphy and taxonomy of polymerid trilobites of the Manuels River Formation (Drumian, middle Cambrian), Newfoundland, Canada, pp. 1051-1087 in Geodiversitas 44 (33) on page 1075, DOI:10.5252/geodiversitas2022v44a33, http://zenodo.org/record/7477657 Other/Unknown Material Newfoundland Zenodo |
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unknown |
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Biodiversity Taxonomy Animalia Arthropoda Trilobita Redlichiida Centropleuridae Clarella |
spellingShingle |
Biodiversity Taxonomy Animalia Arthropoda Trilobita Redlichiida Centropleuridae Clarella Unger, Tanja Hildenbrand, Anne Stinnesbeck, Wolfgang Austermann, Gregor Clarella Howell 1933 |
topic_facet |
Biodiversity Taxonomy Animalia Arthropoda Trilobita Redlichiida Centropleuridae Clarella |
description |
Genus Clarella Howell, 1933 Clarella Howell, 1933: 219. — Type species: Anapolenus venustus Billings, 1872, designated as lectotype by Howell (1933). DIAGNOSIS. — Glabella with great forward expansion anterior of S1; palpebral lobes slightly sigmoidal, reaching almost genal angle; thorax with 15 segments; pygidium without border, up to four pairs of marginal spines; short axis with one to two axial rings (based on Howell 1933; Whittington et al. 1997, with modifications). REMARKS Clarella is distinguished from Anapolenus Salter, 1864a by sigmoidally shaped palpebral lobes that almost reach the genal angle. The palpebral lobes of Anapolenus curve in a uniform arc, reaching the genal angle. The pygidium of Clarella lacks a border, while that of Anapolenus is bordered (Howell 1933; Whittington et al. 1997). Published as part of Unger, Tanja, Hildenbrand, Anne, Stinnesbeck, Wolfgang & Austermann, Gregor, 2022, Biostratigraphy and taxonomy of polymerid trilobites of the Manuels River Formation (Drumian, middle Cambrian), Newfoundland, Canada, pp. 1051-1087 in Geodiversitas 44 (33) on page 1075, DOI:10.5252/geodiversitas2022v44a33, http://zenodo.org/record/7477657 |
format |
Other/Unknown Material |
author |
Unger, Tanja Hildenbrand, Anne Stinnesbeck, Wolfgang Austermann, Gregor |
author_facet |
Unger, Tanja Hildenbrand, Anne Stinnesbeck, Wolfgang Austermann, Gregor |
author_sort |
Unger, Tanja |
title |
Clarella Howell 1933 |
title_short |
Clarella Howell 1933 |
title_full |
Clarella Howell 1933 |
title_fullStr |
Clarella Howell 1933 |
title_full_unstemmed |
Clarella Howell 1933 |
title_sort |
clarella howell 1933 |
publisher |
Zenodo |
publishDate |
2022 |
url |
https://doi.org/10.5281/zenodo.7477308 http://treatment.plazi.org/id/03DA87B6FF8D4956FE827BEEFE4AFA01 |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Biostratigraphy and taxonomy of polymerid trilobites of the Manuels River Formation (Drumian, middle Cambrian), Newfoundland, Canada, pp. 1051-1087 in Geodiversitas, 44(33), 1075, (2022-12-15) |
op_relation |
https://doi.org/10.5252/geodiversitas2022v44a33 http://zenodo.org/record/7477657 http://publication.plazi.org/id/FFE3FFCEFF97494CFFAA7878FFDCFFC1 https://sibils.text-analytics.ch/search/collections/plazi/03DA87B6FF8D4956FE827BEEFE4AFA01 https://www.gbif.org/species/207934021 https://www.checklistbank.org/dataset/56143/taxon/03DA87B6FF8D4956FE827BEEFE4AFA01.taxon http://zoobank.org/urn:lsid:zoobank.org:pub:4DA9802D-9500-4FD8-96F5-F4DD3BBF56A3 https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.7477307 https://doi.org/10.5281/zenodo.7477308 oai:zenodo.org:7477308 http://treatment.plazi.org/id/03DA87B6FF8D4956FE827BEEFE4AFA01 |
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.747730810.5252/geodiversitas2022v44a3310.5281/zenodo.7477307 |
_version_ |
1810458488152784896 |