Ophiologimus aiodipius Thuy 2013, sp. nov.
Ophiologimus aiodipius sp. nov. urn:lsid:zoobank.org:act: C014CC2C-60E3-43F6-B1D6-20F6410E6A97 Fig. 11: 5-6 Diagnosis Species of Ophiologimus with large LAPs displaying coarsely meshed stereom on outer surface; trabeculae of coarsely meshed stereom merged into short, irregular vertical stripes close...
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Online Access: | https://dx.doi.org/10.5281/zenodo.3844118 https://zenodo.org/record/3844118 |
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ftdatacite:10.5281/zenodo.3844118 |
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openpolar |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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unknown |
topic |
Biodiversity Taxonomy Animalia Echinodermata Ophiuroidea Ophiurida Ophiomyxidae Ophiologimus Ophiologimus aiodipius |
spellingShingle |
Biodiversity Taxonomy Animalia Echinodermata Ophiuroidea Ophiurida Ophiomyxidae Ophiologimus Ophiologimus aiodipius Thuy, Ben Ophiologimus aiodipius Thuy 2013, sp. nov. |
topic_facet |
Biodiversity Taxonomy Animalia Echinodermata Ophiuroidea Ophiurida Ophiomyxidae Ophiologimus Ophiologimus aiodipius |
description |
Ophiologimus aiodipius sp. nov. urn:lsid:zoobank.org:act: C014CC2C-60E3-43F6-B1D6-20F6410E6A97 Fig. 11: 5-6 Diagnosis Species of Ophiologimus with large LAPs displaying coarsely meshed stereom on outer surface; trabeculae of coarsely meshed stereom merged into short, irregular vertical stripes close to spine articulations; up to four lenticular, oblique spine articulations; ridge on inner side of LAPs very slender; ventral part of ridge merged with ventral portion of LAP and connected with dorsal part of ridge by gently rounded kink; tentacle notch rather shallow. Etymology Species name derived from IODP, Integrated Ocean Drilling Program, under which the samples yielding the type material were recovered. Type material Holotype GZG.INV.78536. Paratypes GZG.INV.78537. Type locality and horizon Blake Nose, borehole ODP 171B 1049C 12x5, tropical northeast Atlantic; latest Aptian to earliest Albian, Hedbergella trochoidea to Microhedbergella rischi planktonic foraminifer zones, Early Cretaceous. Additional material GZG.INV.78538 (33 dissociated LAPs). Description Holotype GZG.INV.78536 is a dissociated, large, proximal LAP; slightly wider than high; dorsal edge straight; distal edge convex; proximal edge concave, devoid of spurs; ventral fifth of LAP strongly protruding ventro-proximalwards; ventro-distal tip of LAP slightly protruding; outer surface with coarsely meshed stereom; trabeculae merging into short, irregular, vertical stripes close to spine articulations; coarsely meshed stereom replaced by finely meshed stereom in narrow band along proximal edge of LAP. Four large, lenticular, oblique, slightly elongate, nearly equal-sized and equidistant spine articulations freestanding on non-elevated distal portion of LAP; dorsal and ventral lobes merged by sharp, acute kink proximally into continuous volute; gap between spine articulations and distal edge of LAP narrow, slightly increasing in width ventralwards. Ventral edge of LAP with very large, moderately deeply incised, concave tentacle notch. Inner side of LAP with large, very slender ridge; dorsal part of ridge straight, oblique; ventral part almost vertical, merged with ventral portion of LAP and connected with dorsal part by gently rounded kink; no spurs on inner side of distal edge of LAP; inner side of tentacle notch very large. No perforations or furrow discernible. Paratype supplements and variation GZG.INV.78537 is a dissociated distal LAP; approximately twice wider than high; well in agreement with holotype; outer surface with very coarsely meshed stereom; trabeculae merged into shorter and even less regular vertical stripes than in holotype. Three spine articulations similar to those observed in holotype but with dorsalward increase in size. Ventral edge of LAP with very large, but shallow tentacle notch. Ridge on inner side of LAP straight, oblique, slender, merged ventrally with ventral portion of LAP. Remarks These LAPs are unambiguously assignable to Ophiologimus on account of the very large tentacle notch combined with the spine articulations freestanding on the non-elevated distal portion of the LAP and the simple ridge on the inner side devoid of conspicuously thickened parts. Among the fossil LAP types assigned to this genus, the above is unique in combining a coarsely meshed outer surface stereom with lenticular, oblique spine articulations and a continuous ridge on the inner side with the ventral part merged with the ventral portion of the LAP. Occurrence Latest Aptian to earliest Albian of the tropical northeast Atlantic. : Published as part of Thuy, Ben, 2013, Temporary expansion to shelf depths rather than an onshore-offshore trend: the shallow-water rise and demise of the modern deep-sea brittle star family Ophiacanthidae (Echinodermata: Ophiuroidea), pp. 1-242 in European Journal of Taxonomy 48 on pages 54-55, DOI: 10.5852/ejt.2013.48, http://zenodo.org/record/3822836 |
format |
Text |
author |
Thuy, Ben |
author_facet |
Thuy, Ben |
author_sort |
Thuy, Ben |
title |
Ophiologimus aiodipius Thuy 2013, sp. nov. |
title_short |
Ophiologimus aiodipius Thuy 2013, sp. nov. |
title_full |
Ophiologimus aiodipius Thuy 2013, sp. nov. |
title_fullStr |
Ophiologimus aiodipius Thuy 2013, sp. nov. |
title_full_unstemmed |
Ophiologimus aiodipius Thuy 2013, sp. nov. |
title_sort |
ophiologimus aiodipius thuy 2013, sp. nov. |
publisher |
Zenodo |
publishDate |
2013 |
url |
https://dx.doi.org/10.5281/zenodo.3844118 https://zenodo.org/record/3844118 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_relation |
http://zenodo.org/record/3822836 http://publication.plazi.org/id/6541EF1B6555857BD1302529FFF89F78 http://zoobank.org/E7080722-E348-448D-96E5-D537F4865BB5 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.5852/ejt.2013.48 http://zenodo.org/record/3822836 http://publication.plazi.org/id/6541EF1B6555857BD1302529FFF89F78 https://dx.doi.org/10.5281/zenodo.3822862 http://zoobank.org/E7080722-E348-448D-96E5-D537F4865BB5 https://dx.doi.org/10.5281/zenodo.3844119 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.3844118 https://doi.org/10.5852/ejt.2013.48 https://doi.org/10.5281/zenodo.3822862 https://doi.org/10.5281/zenodo.3844119 |
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1766143195276640256 |
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ftdatacite:10.5281/zenodo.3844118 2023-05-15T17:41:34+02:00 Ophiologimus aiodipius Thuy 2013, sp. nov. Thuy, Ben 2013 https://dx.doi.org/10.5281/zenodo.3844118 https://zenodo.org/record/3844118 unknown Zenodo http://zenodo.org/record/3822836 http://publication.plazi.org/id/6541EF1B6555857BD1302529FFF89F78 http://zoobank.org/E7080722-E348-448D-96E5-D537F4865BB5 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.5852/ejt.2013.48 http://zenodo.org/record/3822836 http://publication.plazi.org/id/6541EF1B6555857BD1302529FFF89F78 https://dx.doi.org/10.5281/zenodo.3822862 http://zoobank.org/E7080722-E348-448D-96E5-D537F4865BB5 https://dx.doi.org/10.5281/zenodo.3844119 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 Echinodermata Ophiuroidea Ophiurida Ophiomyxidae Ophiologimus Ophiologimus aiodipius Text Taxonomic treatment article-journal ScholarlyArticle 2013 ftdatacite https://doi.org/10.5281/zenodo.3844118 https://doi.org/10.5852/ejt.2013.48 https://doi.org/10.5281/zenodo.3822862 https://doi.org/10.5281/zenodo.3844119 2021-11-05T12:55:41Z Ophiologimus aiodipius sp. nov. urn:lsid:zoobank.org:act: C014CC2C-60E3-43F6-B1D6-20F6410E6A97 Fig. 11: 5-6 Diagnosis Species of Ophiologimus with large LAPs displaying coarsely meshed stereom on outer surface; trabeculae of coarsely meshed stereom merged into short, irregular vertical stripes close to spine articulations; up to four lenticular, oblique spine articulations; ridge on inner side of LAPs very slender; ventral part of ridge merged with ventral portion of LAP and connected with dorsal part of ridge by gently rounded kink; tentacle notch rather shallow. Etymology Species name derived from IODP, Integrated Ocean Drilling Program, under which the samples yielding the type material were recovered. Type material Holotype GZG.INV.78536. Paratypes GZG.INV.78537. Type locality and horizon Blake Nose, borehole ODP 171B 1049C 12x5, tropical northeast Atlantic; latest Aptian to earliest Albian, Hedbergella trochoidea to Microhedbergella rischi planktonic foraminifer zones, Early Cretaceous. Additional material GZG.INV.78538 (33 dissociated LAPs). Description Holotype GZG.INV.78536 is a dissociated, large, proximal LAP; slightly wider than high; dorsal edge straight; distal edge convex; proximal edge concave, devoid of spurs; ventral fifth of LAP strongly protruding ventro-proximalwards; ventro-distal tip of LAP slightly protruding; outer surface with coarsely meshed stereom; trabeculae merging into short, irregular, vertical stripes close to spine articulations; coarsely meshed stereom replaced by finely meshed stereom in narrow band along proximal edge of LAP. Four large, lenticular, oblique, slightly elongate, nearly equal-sized and equidistant spine articulations freestanding on non-elevated distal portion of LAP; dorsal and ventral lobes merged by sharp, acute kink proximally into continuous volute; gap between spine articulations and distal edge of LAP narrow, slightly increasing in width ventralwards. Ventral edge of LAP with very large, moderately deeply incised, concave tentacle notch. Inner side of LAP with large, very slender ridge; dorsal part of ridge straight, oblique; ventral part almost vertical, merged with ventral portion of LAP and connected with dorsal part by gently rounded kink; no spurs on inner side of distal edge of LAP; inner side of tentacle notch very large. No perforations or furrow discernible. Paratype supplements and variation GZG.INV.78537 is a dissociated distal LAP; approximately twice wider than high; well in agreement with holotype; outer surface with very coarsely meshed stereom; trabeculae merged into shorter and even less regular vertical stripes than in holotype. Three spine articulations similar to those observed in holotype but with dorsalward increase in size. Ventral edge of LAP with very large, but shallow tentacle notch. Ridge on inner side of LAP straight, oblique, slender, merged ventrally with ventral portion of LAP. Remarks These LAPs are unambiguously assignable to Ophiologimus on account of the very large tentacle notch combined with the spine articulations freestanding on the non-elevated distal portion of the LAP and the simple ridge on the inner side devoid of conspicuously thickened parts. Among the fossil LAP types assigned to this genus, the above is unique in combining a coarsely meshed outer surface stereom with lenticular, oblique spine articulations and a continuous ridge on the inner side with the ventral part merged with the ventral portion of the LAP. Occurrence Latest Aptian to earliest Albian of the tropical northeast Atlantic. : Published as part of Thuy, Ben, 2013, Temporary expansion to shelf depths rather than an onshore-offshore trend: the shallow-water rise and demise of the modern deep-sea brittle star family Ophiacanthidae (Echinodermata: Ophiuroidea), pp. 1-242 in European Journal of Taxonomy 48 on pages 54-55, DOI: 10.5852/ejt.2013.48, http://zenodo.org/record/3822836 Text Northeast Atlantic DataCite Metadata Store (German National Library of Science and Technology) |