An enigmatic fossil of sponge affinities from Middle Ordovician rocks of western Newfoundland
A loaf-shaped, spongelike organism is described as Lapidipanis terranovae n. gen. n. sp. from the Table Point Formation. The organism is composed of poorly defined radial and concentric skeletal elements that are formed by spherules from 0.2 to 0.6 mm across. The spherules consist of radially arrang...
Published in: | Canadian Journal of Earth Sciences |
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Language: | English |
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Canadian Science Publishing
1983
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Online Access: | http://dx.doi.org/10.1139/e83-139 http://www.nrcresearchpress.com/doi/pdf/10.1139/e83-139 |
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crcansciencepubl:10.1139/e83-139 2023-12-17T10:44:45+01:00 An enigmatic fossil of sponge affinities from Middle Ordovician rocks of western Newfoundland Paquette, Jeanne Stearn, Colin W. Klappa, Colin F. 1983 http://dx.doi.org/10.1139/e83-139 http://www.nrcresearchpress.com/doi/pdf/10.1139/e83-139 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 20, issue 10, page 1501-1512 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1983 crcansciencepubl https://doi.org/10.1139/e83-139 2023-11-19T13:38:31Z A loaf-shaped, spongelike organism is described as Lapidipanis terranovae n. gen. n. sp. from the Table Point Formation. The organism is composed of poorly defined radial and concentric skeletal elements that are formed by spherules from 0.2 to 0.6 mm across. The spherules consist of radially arranged, wedge-shaped crystals of calcite that may appear to be isolated in a calcite mosaic or in contact with their neighbours. The organism is compared with the modern sclerosponge Astrosclera. If chaetetids and stromatoporoids are excluded from the class Sclerospongiae, Lapidipanis may be the oldest member of this class so far described. Article in Journal/Newspaper Newfoundland Canadian Science Publishing (via Crossref) Canadian Journal of Earth Sciences 20 10 1501 1512 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Paquette, Jeanne Stearn, Colin W. Klappa, Colin F. An enigmatic fossil of sponge affinities from Middle Ordovician rocks of western Newfoundland |
topic_facet |
General Earth and Planetary Sciences |
description |
A loaf-shaped, spongelike organism is described as Lapidipanis terranovae n. gen. n. sp. from the Table Point Formation. The organism is composed of poorly defined radial and concentric skeletal elements that are formed by spherules from 0.2 to 0.6 mm across. The spherules consist of radially arranged, wedge-shaped crystals of calcite that may appear to be isolated in a calcite mosaic or in contact with their neighbours. The organism is compared with the modern sclerosponge Astrosclera. If chaetetids and stromatoporoids are excluded from the class Sclerospongiae, Lapidipanis may be the oldest member of this class so far described. |
format |
Article in Journal/Newspaper |
author |
Paquette, Jeanne Stearn, Colin W. Klappa, Colin F. |
author_facet |
Paquette, Jeanne Stearn, Colin W. Klappa, Colin F. |
author_sort |
Paquette, Jeanne |
title |
An enigmatic fossil of sponge affinities from Middle Ordovician rocks of western Newfoundland |
title_short |
An enigmatic fossil of sponge affinities from Middle Ordovician rocks of western Newfoundland |
title_full |
An enigmatic fossil of sponge affinities from Middle Ordovician rocks of western Newfoundland |
title_fullStr |
An enigmatic fossil of sponge affinities from Middle Ordovician rocks of western Newfoundland |
title_full_unstemmed |
An enigmatic fossil of sponge affinities from Middle Ordovician rocks of western Newfoundland |
title_sort |
enigmatic fossil of sponge affinities from middle ordovician rocks of western newfoundland |
publisher |
Canadian Science Publishing |
publishDate |
1983 |
url |
http://dx.doi.org/10.1139/e83-139 http://www.nrcresearchpress.com/doi/pdf/10.1139/e83-139 |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Canadian Journal of Earth Sciences volume 20, issue 10, page 1501-1512 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e83-139 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
20 |
container_issue |
10 |
container_start_page |
1501 |
op_container_end_page |
1512 |
_version_ |
1785563721034104832 |