Life association of shell and operculum of Ceratopea Ulrich, 1911 (Ordovician; Gastropoda)
Ceratopea Ulrich, 1911, from the Lower Ordovician of North America, Greenland, and Scotland, is one of a few gastropod genera that was established on the calcareous operculum and not the shell. The operculum is commonly found disassociated, and for many years the nature of the shell itself was unkno...
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2004
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crcambridgeupr:10.1666/0022-3360(2004)078-3C0218:laosao-3E2.0.co-3B2 2023-05-15T16:28:26+02:00 Life association of shell and operculum of Ceratopea Ulrich, 1911 (Ordovician; Gastropoda) Rohr, David M. Fix, Michael F. Darrough, Guy 2004 http://dx.doi.org/10.1666/0022-3360(2004)078%3C0218:laosao%3E2.0.co%3B2 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000046308 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of Paleontology volume 78, issue 1, page 218-220 ISSN 0022-3360 1937-2337 Paleontology journal-article 2004 crcambridgeupr https://doi.org/10.1666/0022-3360(2004)078%3C0218:laosao%3E2.0.co%3B2 2022-08-23T16:57:37Z Ceratopea Ulrich, 1911, from the Lower Ordovician of North America, Greenland, and Scotland, is one of a few gastropod genera that was established on the calcareous operculum and not the shell. The operculum is commonly found disassociated, and for many years the nature of the shell itself was unknown (Yochelson, 1975). Yochelson and Bridge (1957, pl. 38, figs. 8–9) illustrated an artificial association of C. unguis with its presumed shell made years earlier by Ulrich and Bridge (Yochelson, written commun.). However, the basal part of the shell is not present. Only one life association of the shell and operculum has been previously documented (Yochelson and Wise, 1972), and that shell is incompletely preserved. Article in Journal/Newspaper Greenland Cambridge University Press (via Crossref) Greenland |
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Open Polar |
collection |
Cambridge University Press (via Crossref) |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Paleontology |
spellingShingle |
Paleontology Rohr, David M. Fix, Michael F. Darrough, Guy Life association of shell and operculum of Ceratopea Ulrich, 1911 (Ordovician; Gastropoda) |
topic_facet |
Paleontology |
description |
Ceratopea Ulrich, 1911, from the Lower Ordovician of North America, Greenland, and Scotland, is one of a few gastropod genera that was established on the calcareous operculum and not the shell. The operculum is commonly found disassociated, and for many years the nature of the shell itself was unknown (Yochelson, 1975). Yochelson and Bridge (1957, pl. 38, figs. 8–9) illustrated an artificial association of C. unguis with its presumed shell made years earlier by Ulrich and Bridge (Yochelson, written commun.). However, the basal part of the shell is not present. Only one life association of the shell and operculum has been previously documented (Yochelson and Wise, 1972), and that shell is incompletely preserved. |
format |
Article in Journal/Newspaper |
author |
Rohr, David M. Fix, Michael F. Darrough, Guy |
author_facet |
Rohr, David M. Fix, Michael F. Darrough, Guy |
author_sort |
Rohr, David M. |
title |
Life association of shell and operculum of Ceratopea Ulrich, 1911 (Ordovician; Gastropoda) |
title_short |
Life association of shell and operculum of Ceratopea Ulrich, 1911 (Ordovician; Gastropoda) |
title_full |
Life association of shell and operculum of Ceratopea Ulrich, 1911 (Ordovician; Gastropoda) |
title_fullStr |
Life association of shell and operculum of Ceratopea Ulrich, 1911 (Ordovician; Gastropoda) |
title_full_unstemmed |
Life association of shell and operculum of Ceratopea Ulrich, 1911 (Ordovician; Gastropoda) |
title_sort |
life association of shell and operculum of ceratopea ulrich, 1911 (ordovician; gastropoda) |
publisher |
Cambridge University Press (CUP) |
publishDate |
2004 |
url |
http://dx.doi.org/10.1666/0022-3360(2004)078%3C0218:laosao%3E2.0.co%3B2 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000046308 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Journal of Paleontology volume 78, issue 1, page 218-220 ISSN 0022-3360 1937-2337 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1666/0022-3360(2004)078%3C0218:laosao%3E2.0.co%3B2 |
_version_ |
1766018076948561920 |