Phthanoncoceratidae Evans & King 1990
Order, gen. et sp. indet. A Fig. 45C–D Material examined Specimen FMNH-P30354, from Profilstranda section, Ny Friesland, Spitsbergen, bed PO 131, 128 m above base of Olenidsletta Member, V2 b trilobite zone, Blackhillsian, Floian. Description Specimen FMNH-P30354 is a 30 mm long fragment of a phragm...
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ftdatacite:10.5281/zenodo.5795760 2023-05-15T17:48:31+02:00 Phthanoncoceratidae Evans & King 1990 Kröger, Björn Pohle, Alexander 2021 https://dx.doi.org/10.5281/zenodo.5795760 https://zenodo.org/record/5795760 unknown Zenodo http://zenodo.org/record/5793422 http://publication.plazi.org/id/A37DFFD4FFACFFAEFFD67F14FFDE7A64 http://zoobank.org/071EAD63-05ED-4D6C-AC45-8719E6D79E0B https://zenodo.org/communities/biosyslit https://dx.doi.org/10.5852/ejt.2021.783.1601 http://zenodo.org/record/5793422 http://publication.plazi.org/id/A37DFFD4FFACFFAEFFD67F14FFDE7A64 https://dx.doi.org/10.5281/zenodo.5793560 http://zoobank.org/071EAD63-05ED-4D6C-AC45-8719E6D79E0B https://dx.doi.org/10.5281/zenodo.5795761 https://zenodo.org/communities/biosyslit Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess CC0 Biodiversity Taxonomy Animalia Mollusca Cephalopoda Tetrabranchia Phthanoncoceratidae Taxonomic treatment article-journal Text ScholarlyArticle 2021 ftdatacite https://doi.org/10.5281/zenodo.5795760 https://doi.org/10.5852/ejt.2021.783.1601 https://doi.org/10.5281/zenodo.5793560 https://doi.org/10.5281/zenodo.5795761 2022-02-08T18:05:53Z Order, gen. et sp. indet. A Fig. 45C–D Material examined Specimen FMNH-P30354, from Profilstranda section, Ny Friesland, Spitsbergen, bed PO 131, 128 m above base of Olenidsletta Member, V2 b trilobite zone, Blackhillsian, Floian. Description Specimen FMNH-P30354 is a 30 mm long fragment of a phragmocone and part of a body chamber. The preserved part of the body chamber is 14 mm long and has a compressed conch cross section with rW = 0.9 at a height of 10 mm. The angle of expansion is not known with precision, but the conch is longiconic and its width grows less than 1 mm at the preserved length of 30 mm. The shell surface is smooth. The conch is nearly orthoconic or slightly curved with the siphuncle presumably near or at the conch margin. The direction of conch curvature is difficult to determine, because the specimen is slightly distorted taphonomically, but presumably the siphuncle is at the concave side of the conch curvature. The sutures are obliquely transverse and bent forward on the convex side of the shell. Approximately five to six chambers occur per length similar to the corresponding conch height. The chamber length is 1.8 mm at a conch height of 9.5 mm (0.19 of corresponding conch width). Remarks This specimen is relatively well preserved externally, but the position of the siphuncle, its shape and the shape of the septal necks are unknown, which precludes any further determination. Based on the relatively narrow septal spacing and the almost straight slender conch form, the specimen is either a fragment of a bassleroceratid or a proterocameroceratid. : Published as part of Kröger, Björn & Pohle, Alexander, 2021, Early-Middle Ordovician cephalopods from Ny Friesland, Spitsbergen - a pelagic fauna with Laurentian affinities, pp. 1-102 in European Journal of Taxonomy 783 (1) on pages 77-78, DOI: 10.5852/ejt.2021.783.1601, http://zenodo.org/record/5793422 Text Ny Friesland Spitsbergen DataCite Metadata Store (German National Library of Science and Technology) Ny Friesland ENVELOPE(16.847,16.847,79.498,79.498) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Mollusca Cephalopoda Tetrabranchia Phthanoncoceratidae |
spellingShingle |
Biodiversity Taxonomy Animalia Mollusca Cephalopoda Tetrabranchia Phthanoncoceratidae Kröger, Björn Pohle, Alexander Phthanoncoceratidae Evans & King 1990 |
topic_facet |
Biodiversity Taxonomy Animalia Mollusca Cephalopoda Tetrabranchia Phthanoncoceratidae |
description |
Order, gen. et sp. indet. A Fig. 45C–D Material examined Specimen FMNH-P30354, from Profilstranda section, Ny Friesland, Spitsbergen, bed PO 131, 128 m above base of Olenidsletta Member, V2 b trilobite zone, Blackhillsian, Floian. Description Specimen FMNH-P30354 is a 30 mm long fragment of a phragmocone and part of a body chamber. The preserved part of the body chamber is 14 mm long and has a compressed conch cross section with rW = 0.9 at a height of 10 mm. The angle of expansion is not known with precision, but the conch is longiconic and its width grows less than 1 mm at the preserved length of 30 mm. The shell surface is smooth. The conch is nearly orthoconic or slightly curved with the siphuncle presumably near or at the conch margin. The direction of conch curvature is difficult to determine, because the specimen is slightly distorted taphonomically, but presumably the siphuncle is at the concave side of the conch curvature. The sutures are obliquely transverse and bent forward on the convex side of the shell. Approximately five to six chambers occur per length similar to the corresponding conch height. The chamber length is 1.8 mm at a conch height of 9.5 mm (0.19 of corresponding conch width). Remarks This specimen is relatively well preserved externally, but the position of the siphuncle, its shape and the shape of the septal necks are unknown, which precludes any further determination. Based on the relatively narrow septal spacing and the almost straight slender conch form, the specimen is either a fragment of a bassleroceratid or a proterocameroceratid. : Published as part of Kröger, Björn & Pohle, Alexander, 2021, Early-Middle Ordovician cephalopods from Ny Friesland, Spitsbergen - a pelagic fauna with Laurentian affinities, pp. 1-102 in European Journal of Taxonomy 783 (1) on pages 77-78, DOI: 10.5852/ejt.2021.783.1601, http://zenodo.org/record/5793422 |
format |
Text |
author |
Kröger, Björn Pohle, Alexander |
author_facet |
Kröger, Björn Pohle, Alexander |
author_sort |
Kröger, Björn |
title |
Phthanoncoceratidae Evans & King 1990 |
title_short |
Phthanoncoceratidae Evans & King 1990 |
title_full |
Phthanoncoceratidae Evans & King 1990 |
title_fullStr |
Phthanoncoceratidae Evans & King 1990 |
title_full_unstemmed |
Phthanoncoceratidae Evans & King 1990 |
title_sort |
phthanoncoceratidae evans & king 1990 |
publisher |
Zenodo |
publishDate |
2021 |
url |
https://dx.doi.org/10.5281/zenodo.5795760 https://zenodo.org/record/5795760 |
long_lat |
ENVELOPE(16.847,16.847,79.498,79.498) |
geographic |
Ny Friesland |
geographic_facet |
Ny Friesland |
genre |
Ny Friesland Spitsbergen |
genre_facet |
Ny Friesland Spitsbergen |
op_relation |
http://zenodo.org/record/5793422 http://publication.plazi.org/id/A37DFFD4FFACFFAEFFD67F14FFDE7A64 http://zoobank.org/071EAD63-05ED-4D6C-AC45-8719E6D79E0B https://zenodo.org/communities/biosyslit https://dx.doi.org/10.5852/ejt.2021.783.1601 http://zenodo.org/record/5793422 http://publication.plazi.org/id/A37DFFD4FFACFFAEFFD67F14FFDE7A64 https://dx.doi.org/10.5281/zenodo.5793560 http://zoobank.org/071EAD63-05ED-4D6C-AC45-8719E6D79E0B https://dx.doi.org/10.5281/zenodo.5795761 https://zenodo.org/communities/biosyslit |
op_rights |
Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC0 |
op_doi |
https://doi.org/10.5281/zenodo.5795760 https://doi.org/10.5852/ejt.2021.783.1601 https://doi.org/10.5281/zenodo.5793560 https://doi.org/10.5281/zenodo.5795761 |
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