Chariocrinus -(Crinoidea: Articulata) from the Latady Formation, Behrendt and Hauberg Mountains, Ellsworth Land, Antarctica
Specimens of a late Bajocian to early Callovian isocrinid assigned to Pentacrinites cf. P. californicus (Clark), and specimens collected by Hikuroa in 1999-2000, are described as a new species of Chariocrinus. All specimens were collected from rock exposures of the Latady Formation at eight localiti...
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Royal Society Of New Zealand
2003
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ftunivauckland:oai:researchspace.auckland.ac.nz:2292/4882 2023-05-15T13:58:51+02:00 Chariocrinus -(Crinoidea: Articulata) from the Latady Formation, Behrendt and Hauberg Mountains, Ellsworth Land, Antarctica Eagle, M.K. Hikuroa, D. 2003 http://hdl.handle.net/2292/4882 unknown Royal Society Of New Zealand New Zealand Journal of Geology and Geophysics Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.sherpa.ac.uk/romeo/issn/0028-8306/ https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm Copyright: Royal Society of New Zealand http://www.royalsociety.org.nz/publications/journals/nzjg/2003/036 Fields of Research::260000 Earth Sciences::260100 Geology Journal Article 2003 ftunivauckland 2013-12-07T08:42:14Z Specimens of a late Bajocian to early Callovian isocrinid assigned to Pentacrinites cf. P. californicus (Clark), and specimens collected by Hikuroa in 1999-2000, are described as a new species of Chariocrinus. All specimens were collected from rock exposures of the Latady Formation at eight localities in the Behrendt and Hauberg Mountains, Ellsworth Land, Antarctica. The fauna, preserved in situ at all localities, is essentially complete, but due to tectonism, localities may have been moved many kilometres from their original position. Chariocrinus latadiensis n. sp. is compared with congeneric species and those of Hispidocrinus. It is the first record of the genus in the Southern Hemisphere, which has European Tethyan affinities. Columnals are pentastellate to pentalobate, and the symplectial articula appear diagnostic of Hispidocrinus but are included in Chariocrinus on the basis of spineless axillaries and fused adjacent crenulae; those of Hispidocrinus are spined and separated by a furrow or smooth band, respectively. A single pluricolumnal (?Apiocrinus) is the only associated crinoid found at any of the localities. Chariocrinus latadiensis lived a semi-sessile existence on a volcarenite substrate in association with vagrant ammonites, epifaunal and infaunal bivalves, and epifaunal brachiopods. The benthic taxa lived in shallow, low energy marine environments in the Middle Jurassic, part of a submarine back-arc basin near the shore off southeastern Gondwana. An open access copy of this article is available from the publishers website. Article in Journal/Newspaper Antarc* Antarctica University of Auckland Research Repository - ResearchSpace Ellsworth Land ENVELOPE(-85.000,-85.000,-75.000,-75.000) Hauberg ENVELOPE(-69.250,-69.250,-75.866,-75.866) Hauberg Mountains ENVELOPE(-69.250,-69.250,-75.867,-75.867) Latady ENVELOPE(-65.833,-65.833,-75.500,-75.500) |
institution |
Open Polar |
collection |
University of Auckland Research Repository - ResearchSpace |
op_collection_id |
ftunivauckland |
language |
unknown |
topic |
Fields of Research::260000 Earth Sciences::260100 Geology |
spellingShingle |
Fields of Research::260000 Earth Sciences::260100 Geology Eagle, M.K. Hikuroa, D. Chariocrinus -(Crinoidea: Articulata) from the Latady Formation, Behrendt and Hauberg Mountains, Ellsworth Land, Antarctica |
topic_facet |
Fields of Research::260000 Earth Sciences::260100 Geology |
description |
Specimens of a late Bajocian to early Callovian isocrinid assigned to Pentacrinites cf. P. californicus (Clark), and specimens collected by Hikuroa in 1999-2000, are described as a new species of Chariocrinus. All specimens were collected from rock exposures of the Latady Formation at eight localities in the Behrendt and Hauberg Mountains, Ellsworth Land, Antarctica. The fauna, preserved in situ at all localities, is essentially complete, but due to tectonism, localities may have been moved many kilometres from their original position. Chariocrinus latadiensis n. sp. is compared with congeneric species and those of Hispidocrinus. It is the first record of the genus in the Southern Hemisphere, which has European Tethyan affinities. Columnals are pentastellate to pentalobate, and the symplectial articula appear diagnostic of Hispidocrinus but are included in Chariocrinus on the basis of spineless axillaries and fused adjacent crenulae; those of Hispidocrinus are spined and separated by a furrow or smooth band, respectively. A single pluricolumnal (?Apiocrinus) is the only associated crinoid found at any of the localities. Chariocrinus latadiensis lived a semi-sessile existence on a volcarenite substrate in association with vagrant ammonites, epifaunal and infaunal bivalves, and epifaunal brachiopods. The benthic taxa lived in shallow, low energy marine environments in the Middle Jurassic, part of a submarine back-arc basin near the shore off southeastern Gondwana. An open access copy of this article is available from the publishers website. |
format |
Article in Journal/Newspaper |
author |
Eagle, M.K. Hikuroa, D. |
author_facet |
Eagle, M.K. Hikuroa, D. |
author_sort |
Eagle, M.K. |
title |
Chariocrinus -(Crinoidea: Articulata) from the Latady Formation, Behrendt and Hauberg Mountains, Ellsworth Land, Antarctica |
title_short |
Chariocrinus -(Crinoidea: Articulata) from the Latady Formation, Behrendt and Hauberg Mountains, Ellsworth Land, Antarctica |
title_full |
Chariocrinus -(Crinoidea: Articulata) from the Latady Formation, Behrendt and Hauberg Mountains, Ellsworth Land, Antarctica |
title_fullStr |
Chariocrinus -(Crinoidea: Articulata) from the Latady Formation, Behrendt and Hauberg Mountains, Ellsworth Land, Antarctica |
title_full_unstemmed |
Chariocrinus -(Crinoidea: Articulata) from the Latady Formation, Behrendt and Hauberg Mountains, Ellsworth Land, Antarctica |
title_sort |
chariocrinus -(crinoidea: articulata) from the latady formation, behrendt and hauberg mountains, ellsworth land, antarctica |
publisher |
Royal Society Of New Zealand |
publishDate |
2003 |
url |
http://hdl.handle.net/2292/4882 |
long_lat |
ENVELOPE(-85.000,-85.000,-75.000,-75.000) ENVELOPE(-69.250,-69.250,-75.866,-75.866) ENVELOPE(-69.250,-69.250,-75.867,-75.867) ENVELOPE(-65.833,-65.833,-75.500,-75.500) |
geographic |
Ellsworth Land Hauberg Hauberg Mountains Latady |
geographic_facet |
Ellsworth Land Hauberg Hauberg Mountains Latady |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
http://www.royalsociety.org.nz/publications/journals/nzjg/2003/036 |
op_relation |
New Zealand Journal of Geology and Geophysics |
op_rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.sherpa.ac.uk/romeo/issn/0028-8306/ https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm Copyright: Royal Society of New Zealand |
_version_ |
1766267224770740224 |