Decoritheca Sysoyev 1972
Genus Decoritheca Sysoyev, 1972 Type species : Hyolithus ( Orthotheca ) excavatus Holm, 1893; middle Cambrian, Sweden. Diagnosis. —See Berg-Madsen and Malinky (1999). Remarks.— Decoritheca is morphologically similar to Contitheca Sysoyev, 1958, but they are separated by the prominent ridge present o...
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ftzenodo:oai:zenodo.org:10986482 2024-09-15T18:10:04+00:00 Decoritheca Sysoyev 1972 Sun, Haijing Malinky, John M. Zhu, Maoyan Huang, Diying 2018-01-29 https://doi.org/10.5281/zenodo.10986482 http://treatment.plazi.org/id/03C44804FFA60C0FFFF597342A28DF8E unknown Zenodo https://doi.org/10.4202/app.00413.2017 http://zenodo.org/record/10980883 http://publication.plazi.org/id/FFFD307CFFA50C0CFF9790282E47DC6B https://sibils.text-analytics.ch/search/collections/plazi/03C44804FFA60C0FFFF597342A28DF8E https://www.gbif.org/species/225693702 https://www.checklistbank.org/dataset/294067/taxon/03C44804FFA60C0FFFF597342A28DF8E.taxon https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.10986481 https://doi.org/10.5281/zenodo.10986482 oai:zenodo.org:10986482 http://treatment.plazi.org/id/03C44804FFA60C0FFFF597342A28DF8E info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Palaeobiology of orthothecide hyoliths from the Cambrian Manto Formation of Hebei Province, North China, pp. 87-101 in Acta Palaeontologica Polonica, 63(1), 90, (2018-01-29) Biodiversity Taxonomy Animalia Orthothecida Novitatidae Decoritheca info:eu-repo/semantics/other 2018 ftzenodo https://doi.org/10.5281/zenodo.1098648210.4202/app.00413.201710.5281/zenodo.10986481 2024-07-25T17:59:09Z Genus Decoritheca Sysoyev, 1972 Type species : Hyolithus ( Orthotheca ) excavatus Holm, 1893; middle Cambrian, Sweden. Diagnosis. —See Berg-Madsen and Malinky (1999). Remarks.— Decoritheca is morphologically similar to Contitheca Sysoyev, 1958, but they are separated by the prominent ridge present on the dorsum of the latter, giving rise to a heart-shaped cross section. The former possesses a rounded dorsum and lacks the middle dorsal ridge, creating a reniform cross section. Specimens described herein match well the traits of Decoritheca and are therefore assigned to that genus. Decoritheca also resembles Nephrotheca Marek, 1966 in cross section, but differs from the latter in solely having transverse lines (Malinky 1987), although, to some degree, ornamentation may not be the best criterion to differentiate taxon ranking above species. So far no operculum for Decoritheca has been documented. Decoritheca cyrene was described from the “middle Cambrian” (Cambrian Series 3) Changhsia Formation and the “upper Cambrian” (Cambrian Furongian) Chaomitien Formation (Walcott 1905; Malinky 1987); the long span of the species may also reflect a taxonomic problem. Until better fossil material is available to address the relationship between Nephrotheca , Decoritheca , and some other similar taxa, specimens described below are provisionally placed under Decoritheca . Stratigraphic and geographic range .—Cambrian Series 2 Stage 3 to Furongian Stage 10. Distributed in China, Greenland, Sweden, British Columbia, Texas, Montana, possibly South Dakota, and New York State (Malinky 1987; 1990; 2014; see also SOM 2). Published as part of Sun, Haijing, Malinky, John M., Zhu, Maoyan & Huang, Diying, 2018, Palaeobiology of orthothecide hyoliths from the Cambrian Manto Formation of Hebei Province, North China, pp. 87-101 in Acta Palaeontologica Polonica 63 (1) on page 90, DOI:10.4202/app.00413.2017, http://zenodo.org/record/10980883 Other/Unknown Material Greenland Zenodo |
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Biodiversity Taxonomy Animalia Orthothecida Novitatidae Decoritheca |
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Biodiversity Taxonomy Animalia Orthothecida Novitatidae Decoritheca Sun, Haijing Malinky, John M. Zhu, Maoyan Huang, Diying Decoritheca Sysoyev 1972 |
topic_facet |
Biodiversity Taxonomy Animalia Orthothecida Novitatidae Decoritheca |
description |
Genus Decoritheca Sysoyev, 1972 Type species : Hyolithus ( Orthotheca ) excavatus Holm, 1893; middle Cambrian, Sweden. Diagnosis. —See Berg-Madsen and Malinky (1999). Remarks.— Decoritheca is morphologically similar to Contitheca Sysoyev, 1958, but they are separated by the prominent ridge present on the dorsum of the latter, giving rise to a heart-shaped cross section. The former possesses a rounded dorsum and lacks the middle dorsal ridge, creating a reniform cross section. Specimens described herein match well the traits of Decoritheca and are therefore assigned to that genus. Decoritheca also resembles Nephrotheca Marek, 1966 in cross section, but differs from the latter in solely having transverse lines (Malinky 1987), although, to some degree, ornamentation may not be the best criterion to differentiate taxon ranking above species. So far no operculum for Decoritheca has been documented. Decoritheca cyrene was described from the “middle Cambrian” (Cambrian Series 3) Changhsia Formation and the “upper Cambrian” (Cambrian Furongian) Chaomitien Formation (Walcott 1905; Malinky 1987); the long span of the species may also reflect a taxonomic problem. Until better fossil material is available to address the relationship between Nephrotheca , Decoritheca , and some other similar taxa, specimens described below are provisionally placed under Decoritheca . Stratigraphic and geographic range .—Cambrian Series 2 Stage 3 to Furongian Stage 10. Distributed in China, Greenland, Sweden, British Columbia, Texas, Montana, possibly South Dakota, and New York State (Malinky 1987; 1990; 2014; see also SOM 2). Published as part of Sun, Haijing, Malinky, John M., Zhu, Maoyan & Huang, Diying, 2018, Palaeobiology of orthothecide hyoliths from the Cambrian Manto Formation of Hebei Province, North China, pp. 87-101 in Acta Palaeontologica Polonica 63 (1) on page 90, DOI:10.4202/app.00413.2017, http://zenodo.org/record/10980883 |
format |
Other/Unknown Material |
author |
Sun, Haijing Malinky, John M. Zhu, Maoyan Huang, Diying |
author_facet |
Sun, Haijing Malinky, John M. Zhu, Maoyan Huang, Diying |
author_sort |
Sun, Haijing |
title |
Decoritheca Sysoyev 1972 |
title_short |
Decoritheca Sysoyev 1972 |
title_full |
Decoritheca Sysoyev 1972 |
title_fullStr |
Decoritheca Sysoyev 1972 |
title_full_unstemmed |
Decoritheca Sysoyev 1972 |
title_sort |
decoritheca sysoyev 1972 |
publisher |
Zenodo |
publishDate |
2018 |
url |
https://doi.org/10.5281/zenodo.10986482 http://treatment.plazi.org/id/03C44804FFA60C0FFFF597342A28DF8E |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Palaeobiology of orthothecide hyoliths from the Cambrian Manto Formation of Hebei Province, North China, pp. 87-101 in Acta Palaeontologica Polonica, 63(1), 90, (2018-01-29) |
op_relation |
https://doi.org/10.4202/app.00413.2017 http://zenodo.org/record/10980883 http://publication.plazi.org/id/FFFD307CFFA50C0CFF9790282E47DC6B https://sibils.text-analytics.ch/search/collections/plazi/03C44804FFA60C0FFFF597342A28DF8E https://www.gbif.org/species/225693702 https://www.checklistbank.org/dataset/294067/taxon/03C44804FFA60C0FFFF597342A28DF8E.taxon https://zenodo.org/communities/biosyslit https://doi.org/10.5281/zenodo.10986481 https://doi.org/10.5281/zenodo.10986482 oai:zenodo.org:10986482 http://treatment.plazi.org/id/03C44804FFA60C0FFFF597342A28DF8E |
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.1098648210.4202/app.00413.201710.5281/zenodo.10986481 |
_version_ |
1810447674778845184 |