Myriapora Zágoršek & Gordon, 2014, n. comb.
Myriapora Ξ beyrichi (Stoliczka, 1862) n. comb. (Fig. 6 G-H) Cellaria beyrichi Stoliczka, 1862: 83, pl. 1, fig. 10. MATERIAL EXAMINED. — Holotype, registered as 1859/0026/0133. DIAGNOSIS. — Colony multiserial, erect with circular cross section. Branch fragment comprising fewer than 20 autozooecia, t...
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ftzenodo:oai:zenodo.org:4837310 2023-05-15T15:12:07+02:00 Myriapora Zágoršek & Gordon, 2014, n. comb. Zágoršek, Kamil Gordon, Dennis P. 2014-12-26 https://zenodo.org/record/4837310 https://doi.org/10.5281/zenodo.4837310 unknown info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/926087BC1605FFE1FFCFFE36FC0EFEC6 doi:10.5252/g2014n4a3 http://zenodo.org/record/4538596 http://publication.plazi.org/id/6E59FFC4160AFFEEFFB3FFE3FFD9FF97 doi:10.5281/zenodo.4538612 doi:10.5281/zenodo.4837309 https://zenodo.org/communities/biosyslit https://zenodo.org/record/4837310 https://doi.org/10.5281/zenodo.4837310 oai:zenodo.org:4837310 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Revision of the Oligocene bryozoan taxa described by Stoliczka (1862), with the description of a new genus of Bryocryptellidae, pp. 541-564 in Geodiversitas 36(4) 556 Biodiversity Taxonomy Animalia Bryozoa Gymnolaemata Cheilostomatida Myriaporidae Myriapora info:eu-repo/semantics/other publication-taxonomictreatment 2014 ftzenodo https://doi.org/10.5281/zenodo.483731010.5252/g2014n4a310.5281/zenodo.453861210.5281/zenodo.4837309 2023-03-10T14:47:14Z Myriapora Ξ beyrichi (Stoliczka, 1862) n. comb. (Fig. 6 G-H) Cellaria beyrichi Stoliczka, 1862: 83, pl. 1, fig. 10. MATERIAL EXAMINED. — Holotype, registered as 1859/0026/0133. DIAGNOSIS. — Colony multiserial, erect with circular cross section. Branch fragment comprising fewer than 20 autozooecia, these trapezoidal, with densely pseudoporous frontal shields bordered by smooth interzooidal boundaries that represent frontally eroded adjacent zooecial margins. Apertures large, more or less cleithridiate with wedge-shaped sinus delimited by prominent condyles. No avicularia or ooecia. REMARKS Ŋe smooth interzooecial boundaries and cleithridiate orifice are distinctive features of this species.Ŋe generic attribution is uncertain in the absence of ovicells and avicularia. Ŋe apertural shape most resembles that seen in Myriapora, a genus confined to Mediterranean and Arctic-Boreal waters, whose species, however, do not normally have such distinct interzooecial boundaries. A species with similarlooking zooecia is Myriapora kuhni Vávra, 2011, from the Oligocene of Germany; it is encrusting, however, and the visible autozooecial boundaries do not form such a wide outline. On the other hand, the colonial and zooecial morphology of Stoliczka’s species match that found in Opphiphorina Gordon & d’Hondt, 1997 (Phorioppniidae), a monotypic genus known only from New Caledonia and the Kermadec Islands in the Southwest Pacific. Oppiphorina epaxia (Gordon, 1984) has somewhat cleidridiate apertures (with a broader sinus, however) and densely perforated zooecia with raised margins that, if eroded, would present exactly the smooth interzooecial boundaries seen in C. beyrichi. Similar margins are seen in confamilial Phorioppnia Gordon & d’Hondt, 1997 from New Caledonia, which, however, has non-cleithridiate apertures and dimorphic female orifices. Only the finding of ovicells in Stoliczka’s species will settle the matter. Published as part of Zágoršek, Kamil & Gordon, Dennis P., 2014, Revision of ... Other/Unknown Material Arctic Zenodo Arctic Pacific |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Bryozoa Gymnolaemata Cheilostomatida Myriaporidae Myriapora |
spellingShingle |
Biodiversity Taxonomy Animalia Bryozoa Gymnolaemata Cheilostomatida Myriaporidae Myriapora Zágoršek, Kamil Gordon, Dennis P. Myriapora Zágoršek & Gordon, 2014, n. comb. |
topic_facet |
Biodiversity Taxonomy Animalia Bryozoa Gymnolaemata Cheilostomatida Myriaporidae Myriapora |
description |
Myriapora Ξ beyrichi (Stoliczka, 1862) n. comb. (Fig. 6 G-H) Cellaria beyrichi Stoliczka, 1862: 83, pl. 1, fig. 10. MATERIAL EXAMINED. — Holotype, registered as 1859/0026/0133. DIAGNOSIS. — Colony multiserial, erect with circular cross section. Branch fragment comprising fewer than 20 autozooecia, these trapezoidal, with densely pseudoporous frontal shields bordered by smooth interzooidal boundaries that represent frontally eroded adjacent zooecial margins. Apertures large, more or less cleithridiate with wedge-shaped sinus delimited by prominent condyles. No avicularia or ooecia. REMARKS Ŋe smooth interzooecial boundaries and cleithridiate orifice are distinctive features of this species.Ŋe generic attribution is uncertain in the absence of ovicells and avicularia. Ŋe apertural shape most resembles that seen in Myriapora, a genus confined to Mediterranean and Arctic-Boreal waters, whose species, however, do not normally have such distinct interzooecial boundaries. A species with similarlooking zooecia is Myriapora kuhni Vávra, 2011, from the Oligocene of Germany; it is encrusting, however, and the visible autozooecial boundaries do not form such a wide outline. On the other hand, the colonial and zooecial morphology of Stoliczka’s species match that found in Opphiphorina Gordon & d’Hondt, 1997 (Phorioppniidae), a monotypic genus known only from New Caledonia and the Kermadec Islands in the Southwest Pacific. Oppiphorina epaxia (Gordon, 1984) has somewhat cleidridiate apertures (with a broader sinus, however) and densely perforated zooecia with raised margins that, if eroded, would present exactly the smooth interzooecial boundaries seen in C. beyrichi. Similar margins are seen in confamilial Phorioppnia Gordon & d’Hondt, 1997 from New Caledonia, which, however, has non-cleithridiate apertures and dimorphic female orifices. Only the finding of ovicells in Stoliczka’s species will settle the matter. Published as part of Zágoršek, Kamil & Gordon, Dennis P., 2014, Revision of ... |
format |
Other/Unknown Material |
author |
Zágoršek, Kamil Gordon, Dennis P. |
author_facet |
Zágoršek, Kamil Gordon, Dennis P. |
author_sort |
Zágoršek, Kamil |
title |
Myriapora Zágoršek & Gordon, 2014, n. comb. |
title_short |
Myriapora Zágoršek & Gordon, 2014, n. comb. |
title_full |
Myriapora Zágoršek & Gordon, 2014, n. comb. |
title_fullStr |
Myriapora Zágoršek & Gordon, 2014, n. comb. |
title_full_unstemmed |
Myriapora Zágoršek & Gordon, 2014, n. comb. |
title_sort |
myriapora zágoršek & gordon, 2014, n. comb. |
publishDate |
2014 |
url |
https://zenodo.org/record/4837310 https://doi.org/10.5281/zenodo.4837310 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Revision of the Oligocene bryozoan taxa described by Stoliczka (1862), with the description of a new genus of Bryocryptellidae, pp. 541-564 in Geodiversitas 36(4) 556 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/926087BC1605FFE1FFCFFE36FC0EFEC6 doi:10.5252/g2014n4a3 http://zenodo.org/record/4538596 http://publication.plazi.org/id/6E59FFC4160AFFEEFFB3FFE3FFD9FF97 doi:10.5281/zenodo.4538612 doi:10.5281/zenodo.4837309 https://zenodo.org/communities/biosyslit https://zenodo.org/record/4837310 https://doi.org/10.5281/zenodo.4837310 oai:zenodo.org:4837310 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.483731010.5252/g2014n4a310.5281/zenodo.453861210.5281/zenodo.4837309 |
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