Alispira gracilis
Alispira gracilis (Nikiforova in Nikiforova & Andreeva, 1961) Zygospira (Alispira) gracilis Nikiforova in Nikiforova & Andreeva, 1961: 244, pl. LIII, figs 1-8. Alispira gracilis – Rubel 1970: 25, pl. XIII, figs 16- 22. — Lopushinskaya 1976: 63, pl. XI, figs 1, 2. MATERIAL EXAMINED. — Two spe...
Main Author: | |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
2003
|
Subjects: | |
Online Access: | https://zenodo.org/record/5463796 https://doi.org/10.5281/zenodo.5463796 |
id |
ftzenodo:oai:zenodo.org:5463796 |
---|---|
record_format |
openpolar |
spelling |
ftzenodo:oai:zenodo.org:5463796 2023-05-15T14:25:56+02:00 Alispira gracilis Modzalevskaya, Tatiana L. 2003-12-31 https://zenodo.org/record/5463796 https://doi.org/10.5281/zenodo.5463796 unknown info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03A0162AE956FFB8DAB0FCE979791894 doi:10.5281/zenodo.5375016 http://publication.plazi.org/id/FF996E52E947FFA9DA1EFFC77B251E11 doi:10.5281/zenodo.5463795 https://zenodo.org/communities/biosyslit https://zenodo.org/record/5463796 https://doi.org/10.5281/zenodo.5463796 oai:zenodo.org:5463796 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Silurian and Devonian brachiopods from Severnaya Zemlya (Russian Arctic), pp. 73-107 in Geodiversitas 25(1) 90 Biodiversity Taxonomy Animalia Brachiopoda Rhynchonellata Atrypida Lissatrypidae Alispira Alispira gracilis info:eu-repo/semantics/other publication-taxonomictreatment 2003 ftzenodo https://doi.org/10.5281/zenodo.546379610.5281/zenodo.537501610.5281/zenodo.5463795 2023-03-10T15:01:11Z Alispira gracilis (Nikiforova in Nikiforova & Andreeva, 1961) Zygospira (Alispira) gracilis Nikiforova in Nikiforova & Andreeva, 1961: 244, pl. LIII, figs 1-8. Alispira gracilis – Rubel 1970: 25, pl. XIII, figs 16- 22. — Lopushinskaya 1976: 63, pl. XI, figs 1, 2. MATERIAL EXAMINED. — Two specimens from loc. 12, bed 112, Matusevich River, October Revolution Island (Männik et al. 2002: figs 2, 5); Vodopad Formation. REMARKS Specimens have a ventral valve with a keel on the umbo, and an acute, weakly incurved beak. The sinus is well defined: arising at the umbo, it is bordered by larger ribs and commonly bears one or two weaker ones. The lateral ribs increase in width anteriorly. The number of ribs multiplies by bifurcation and intercalation. Based on these features the specimens are assigned to Alispira gracilis which is typical of the Chamba and Talikit formations of East Siberia. Homeospira ? sp. (Poulsen 1934: 19, pl. 2, figs 21, 22) from the Cape Schuchert Formation of Greenland resembles A. gracilis. O. I. Nikiforova thought that, in reality, the last one should also be assigned to A. gracilis (Nikiforova & Andreeva 1961). Published as part of Modzalevskaya, Tatiana L., 2003, Silurian and Devonian brachiopods from Severnaya Zemlya (Russian Arctic), pp. 73-107 in Geodiversitas 25 (1) on page 90, DOI:10.5281/zenodo.5375016 Other/Unknown Material Arctic Arctic Greenland October Revolution Island Severnaya Zemlya Siberia Zenodo Arctic Greenland Severnaya Zemlya ENVELOPE(98.000,98.000,79.500,79.500) Andreeva ENVELOPE(155.200,155.200,-68.917,-68.917) Nikiforova ENVELOPE(64.750,64.750,-70.000,-70.000) Talikit ENVELOPE(89.130,89.130,69.431,69.431) |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Brachiopoda Rhynchonellata Atrypida Lissatrypidae Alispira Alispira gracilis |
spellingShingle |
Biodiversity Taxonomy Animalia Brachiopoda Rhynchonellata Atrypida Lissatrypidae Alispira Alispira gracilis Modzalevskaya, Tatiana L. Alispira gracilis |
topic_facet |
Biodiversity Taxonomy Animalia Brachiopoda Rhynchonellata Atrypida Lissatrypidae Alispira Alispira gracilis |
description |
Alispira gracilis (Nikiforova in Nikiforova & Andreeva, 1961) Zygospira (Alispira) gracilis Nikiforova in Nikiforova & Andreeva, 1961: 244, pl. LIII, figs 1-8. Alispira gracilis – Rubel 1970: 25, pl. XIII, figs 16- 22. — Lopushinskaya 1976: 63, pl. XI, figs 1, 2. MATERIAL EXAMINED. — Two specimens from loc. 12, bed 112, Matusevich River, October Revolution Island (Männik et al. 2002: figs 2, 5); Vodopad Formation. REMARKS Specimens have a ventral valve with a keel on the umbo, and an acute, weakly incurved beak. The sinus is well defined: arising at the umbo, it is bordered by larger ribs and commonly bears one or two weaker ones. The lateral ribs increase in width anteriorly. The number of ribs multiplies by bifurcation and intercalation. Based on these features the specimens are assigned to Alispira gracilis which is typical of the Chamba and Talikit formations of East Siberia. Homeospira ? sp. (Poulsen 1934: 19, pl. 2, figs 21, 22) from the Cape Schuchert Formation of Greenland resembles A. gracilis. O. I. Nikiforova thought that, in reality, the last one should also be assigned to A. gracilis (Nikiforova & Andreeva 1961). Published as part of Modzalevskaya, Tatiana L., 2003, Silurian and Devonian brachiopods from Severnaya Zemlya (Russian Arctic), pp. 73-107 in Geodiversitas 25 (1) on page 90, DOI:10.5281/zenodo.5375016 |
format |
Other/Unknown Material |
author |
Modzalevskaya, Tatiana L. |
author_facet |
Modzalevskaya, Tatiana L. |
author_sort |
Modzalevskaya, Tatiana L. |
title |
Alispira gracilis |
title_short |
Alispira gracilis |
title_full |
Alispira gracilis |
title_fullStr |
Alispira gracilis |
title_full_unstemmed |
Alispira gracilis |
title_sort |
alispira gracilis |
publishDate |
2003 |
url |
https://zenodo.org/record/5463796 https://doi.org/10.5281/zenodo.5463796 |
long_lat |
ENVELOPE(98.000,98.000,79.500,79.500) ENVELOPE(155.200,155.200,-68.917,-68.917) ENVELOPE(64.750,64.750,-70.000,-70.000) ENVELOPE(89.130,89.130,69.431,69.431) |
geographic |
Arctic Greenland Severnaya Zemlya Andreeva Nikiforova Talikit |
geographic_facet |
Arctic Greenland Severnaya Zemlya Andreeva Nikiforova Talikit |
genre |
Arctic Arctic Greenland October Revolution Island Severnaya Zemlya Siberia |
genre_facet |
Arctic Arctic Greenland October Revolution Island Severnaya Zemlya Siberia |
op_source |
Silurian and Devonian brachiopods from Severnaya Zemlya (Russian Arctic), pp. 73-107 in Geodiversitas 25(1) 90 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03A0162AE956FFB8DAB0FCE979791894 doi:10.5281/zenodo.5375016 http://publication.plazi.org/id/FF996E52E947FFA9DA1EFFC77B251E11 doi:10.5281/zenodo.5463795 https://zenodo.org/communities/biosyslit https://zenodo.org/record/5463796 https://doi.org/10.5281/zenodo.5463796 oai:zenodo.org:5463796 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.546379610.5281/zenodo.537501610.5281/zenodo.5463795 |
_version_ |
1766298422748381184 |