Echinoids from the Chlamys Ledge Member (Polonez Cove Formation, Oligocene) of King George Island, West Antarctica
Abstract New echinoid material from the Oligocene Chlamys Ledge Member (uppermost part of the Polonez Cove Formation) on King George Island, West Antarctica, includes the “regular” echinoid Caenopedina aleksandrabitnerae sp. n. and poorly preserved spatan-goids, here tentatively identified as member...
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Walter de Gruyter GmbH
2014
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Online Access: | http://dx.doi.org/10.2478/popore-2014-0024 http://content.sciendo.com/view/journals/popore/35/3/article-p455.xml https://www.degruyter.com/view/j/popore.2014.35.issue-3/popore-2014-0024/popore-2014-0024.pdf |
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crdegruyter:10.2478/popore-2014-0024 2023-05-15T14:12:06+02:00 Echinoids from the Chlamys Ledge Member (Polonez Cove Formation, Oligocene) of King George Island, West Antarctica Kroh, Andreas 2014 http://dx.doi.org/10.2478/popore-2014-0024 http://content.sciendo.com/view/journals/popore/35/3/article-p455.xml https://www.degruyter.com/view/j/popore.2014.35.issue-3/popore-2014-0024/popore-2014-0024.pdf unknown Walter de Gruyter GmbH http://creativecommons.org/licenses/by-nc-nd/3.0/ CC-BY-NC-ND Polish Polar Research volume 35, issue 3, page 455-467 ISSN 2081-8262 Ecology Ecology, Evolution, Behavior and Systematics journal-article 2014 crdegruyter https://doi.org/10.2478/popore-2014-0024 2022-04-14T05:11:23Z Abstract New echinoid material from the Oligocene Chlamys Ledge Member (uppermost part of the Polonez Cove Formation) on King George Island, West Antarctica, includes the “regular” echinoid Caenopedina aleksandrabitnerae sp. n. and poorly preserved spatan-goids, here tentatively identified as members of the genus Abatus . Caenopedina aleksan-drabitnerae sp. n. is characterized by fully tuberculate genital plates, which sets it apart from most other species in the genus, by the uneven periproctal margin which indicates that periproctal plates were incorporated into the apical disc, and by moderately wide inter-ambulacral plates with a height/width ratio of 1:3. Among the modern Caenopedina species it is closest to the Australian and New Zealand representatives, which is in contrast to previ-ous reviews of Cenozoic Antarctic echinoid faunas that suggested limited relationship to the Australasian region. This is the first record of Caenopedina from Antarctica; it considerably extends its historical distribution to the south. Article in Journal/Newspaper Antarc* Antarctic Antarctica King George Island Polar Research West Antarctica De Gruyter (via Crossref) Antarctic King George Island West Antarctica New Zealand Polonez Cove ENVELOPE(-58.131,-58.131,-62.153,-62.153) Chlamys Ledge ENVELOPE(-58.124,-58.124,-62.143,-62.143) Polish Polar Research 35 3 455 467 |
institution |
Open Polar |
collection |
De Gruyter (via Crossref) |
op_collection_id |
crdegruyter |
language |
unknown |
topic |
Ecology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology Ecology, Evolution, Behavior and Systematics Kroh, Andreas Echinoids from the Chlamys Ledge Member (Polonez Cove Formation, Oligocene) of King George Island, West Antarctica |
topic_facet |
Ecology Ecology, Evolution, Behavior and Systematics |
description |
Abstract New echinoid material from the Oligocene Chlamys Ledge Member (uppermost part of the Polonez Cove Formation) on King George Island, West Antarctica, includes the “regular” echinoid Caenopedina aleksandrabitnerae sp. n. and poorly preserved spatan-goids, here tentatively identified as members of the genus Abatus . Caenopedina aleksan-drabitnerae sp. n. is characterized by fully tuberculate genital plates, which sets it apart from most other species in the genus, by the uneven periproctal margin which indicates that periproctal plates were incorporated into the apical disc, and by moderately wide inter-ambulacral plates with a height/width ratio of 1:3. Among the modern Caenopedina species it is closest to the Australian and New Zealand representatives, which is in contrast to previ-ous reviews of Cenozoic Antarctic echinoid faunas that suggested limited relationship to the Australasian region. This is the first record of Caenopedina from Antarctica; it considerably extends its historical distribution to the south. |
format |
Article in Journal/Newspaper |
author |
Kroh, Andreas |
author_facet |
Kroh, Andreas |
author_sort |
Kroh, Andreas |
title |
Echinoids from the Chlamys Ledge Member (Polonez Cove Formation, Oligocene) of King George Island, West Antarctica |
title_short |
Echinoids from the Chlamys Ledge Member (Polonez Cove Formation, Oligocene) of King George Island, West Antarctica |
title_full |
Echinoids from the Chlamys Ledge Member (Polonez Cove Formation, Oligocene) of King George Island, West Antarctica |
title_fullStr |
Echinoids from the Chlamys Ledge Member (Polonez Cove Formation, Oligocene) of King George Island, West Antarctica |
title_full_unstemmed |
Echinoids from the Chlamys Ledge Member (Polonez Cove Formation, Oligocene) of King George Island, West Antarctica |
title_sort |
echinoids from the chlamys ledge member (polonez cove formation, oligocene) of king george island, west antarctica |
publisher |
Walter de Gruyter GmbH |
publishDate |
2014 |
url |
http://dx.doi.org/10.2478/popore-2014-0024 http://content.sciendo.com/view/journals/popore/35/3/article-p455.xml https://www.degruyter.com/view/j/popore.2014.35.issue-3/popore-2014-0024/popore-2014-0024.pdf |
long_lat |
ENVELOPE(-58.131,-58.131,-62.153,-62.153) ENVELOPE(-58.124,-58.124,-62.143,-62.143) |
geographic |
Antarctic King George Island West Antarctica New Zealand Polonez Cove Chlamys Ledge |
geographic_facet |
Antarctic King George Island West Antarctica New Zealand Polonez Cove Chlamys Ledge |
genre |
Antarc* Antarctic Antarctica King George Island Polar Research West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica King George Island Polar Research West Antarctica |
op_source |
Polish Polar Research volume 35, issue 3, page 455-467 ISSN 2081-8262 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/3.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.2478/popore-2014-0024 |
container_title |
Polish Polar Research |
container_volume |
35 |
container_issue |
3 |
container_start_page |
455 |
op_container_end_page |
467 |
_version_ |
1766284364271845376 |