A problematic cnidarian (Cambroctoconus; Octocorallia?) from the Cambrian (Series 2–3) of Laurentia
The problematic calcified cnidarian Cambroctoconus is described from the Henson Gletscher Formation (Cambrian Series 2, Stage 4—Series 3, Stage 5) of North Greenland, representing the first record from Laurentia of a genus otherwise recently described from China, Kyrgyzstan, and Korea. Internal mold...
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ftbioone:10.1017/jpa.2017.49 2024-06-02T08:07:30+00:00 A problematic cnidarian (Cambroctoconus; Octocorallia?) from the Cambrian (Series 2–3) of Laurentia John S. Peel John S. Peel world 2017-09-01 text/HTML https://doi.org/10.1017/jpa.2017.49 en eng The Paleontological Society doi:10.1017/jpa.2017.49 All rights reserved. https://doi.org/10.1017/jpa.2017.49 Text 2017 ftbioone https://doi.org/10.1017/jpa.2017.49 2024-05-07T00:47:45Z The problematic calcified cnidarian Cambroctoconus is described from the Henson Gletscher Formation (Cambrian Series 2, Stage 4—Series 3, Stage 5) of North Greenland, representing the first record from Laurentia of a genus otherwise recently described from China, Kyrgyzstan, and Korea. Internal molds produced by penetrative phosphatization mirror the pervasive pore system of the calice walls and septa. The pore system is compared to the network of gastrodermal solenia that distributes nutrients between polyps and surrounding stolon tissues in present day octocorals. In conjunction with the octagonal form of the individual coralla and eight-fold symmetry of septa, the pore system promotes assignment of Cambroctoconus to the Octocorallia, a basal clade in cnidarian phylogeny. Octocorals (‘soft corals’) are diverse in present day seas, but have a poor fossil record despite the general development of distinctive calcareous spicules. New taxa: Order Cambroctoconida new; Cambroctoconus koori new species. Text Greenland North Greenland BioOne Online Journals Greenland Henson ENVELOPE(-168.350,-168.350,-84.833,-84.833) Henson Gletscher ENVELOPE(-40.333,-40.333,82.350,82.350) Journal of Paleontology 91 5 871 882 |
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Open Polar |
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BioOne Online Journals |
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ftbioone |
language |
English |
description |
The problematic calcified cnidarian Cambroctoconus is described from the Henson Gletscher Formation (Cambrian Series 2, Stage 4—Series 3, Stage 5) of North Greenland, representing the first record from Laurentia of a genus otherwise recently described from China, Kyrgyzstan, and Korea. Internal molds produced by penetrative phosphatization mirror the pervasive pore system of the calice walls and septa. The pore system is compared to the network of gastrodermal solenia that distributes nutrients between polyps and surrounding stolon tissues in present day octocorals. In conjunction with the octagonal form of the individual coralla and eight-fold symmetry of septa, the pore system promotes assignment of Cambroctoconus to the Octocorallia, a basal clade in cnidarian phylogeny. Octocorals (‘soft corals’) are diverse in present day seas, but have a poor fossil record despite the general development of distinctive calcareous spicules. New taxa: Order Cambroctoconida new; Cambroctoconus koori new species. |
author2 |
John S. Peel |
format |
Text |
author |
John S. Peel |
spellingShingle |
John S. Peel A problematic cnidarian (Cambroctoconus; Octocorallia?) from the Cambrian (Series 2–3) of Laurentia |
author_facet |
John S. Peel |
author_sort |
John S. Peel |
title |
A problematic cnidarian (Cambroctoconus; Octocorallia?) from the Cambrian (Series 2–3) of Laurentia |
title_short |
A problematic cnidarian (Cambroctoconus; Octocorallia?) from the Cambrian (Series 2–3) of Laurentia |
title_full |
A problematic cnidarian (Cambroctoconus; Octocorallia?) from the Cambrian (Series 2–3) of Laurentia |
title_fullStr |
A problematic cnidarian (Cambroctoconus; Octocorallia?) from the Cambrian (Series 2–3) of Laurentia |
title_full_unstemmed |
A problematic cnidarian (Cambroctoconus; Octocorallia?) from the Cambrian (Series 2–3) of Laurentia |
title_sort |
problematic cnidarian (cambroctoconus; octocorallia?) from the cambrian (series 2–3) of laurentia |
publisher |
The Paleontological Society |
publishDate |
2017 |
url |
https://doi.org/10.1017/jpa.2017.49 |
op_coverage |
world |
long_lat |
ENVELOPE(-168.350,-168.350,-84.833,-84.833) ENVELOPE(-40.333,-40.333,82.350,82.350) |
geographic |
Greenland Henson Henson Gletscher |
geographic_facet |
Greenland Henson Henson Gletscher |
genre |
Greenland North Greenland |
genre_facet |
Greenland North Greenland |
op_source |
https://doi.org/10.1017/jpa.2017.49 |
op_relation |
doi:10.1017/jpa.2017.49 |
op_rights |
All rights reserved. |
op_doi |
https://doi.org/10.1017/jpa.2017.49 |
container_title |
Journal of Paleontology |
container_volume |
91 |
container_issue |
5 |
container_start_page |
871 |
op_container_end_page |
882 |
_version_ |
1800752594280251392 |