Chariocrinus japonicus, a new species of isocrinid crinoid (Articulata) from the Lower Cretaceous of Takayama City, central Japan
A specimen, originally described as ‘Pentacrinus’ from the Middle–Upper Jurassic of central Japan, is re-analysed and now recognised to be a new species of the genus Chariocrinus Hess, 1972, from the Lower Cretaceous. Chariocrinus japonicus sp. nov. has nine columnals per noditaxis, low columnal hei...
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Mizunami Fossil Museum
2011
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ftcurtin:oai:espace.curtin.edu.au:20.500.11937/10223 2023-06-11T04:07:06+02:00 Chariocrinus japonicus, a new species of isocrinid crinoid (Articulata) from the Lower Cretaceous of Takayama City, central Japan Hunter, Aaron Oji, T. Ewin, T. Kitazawa, K. 2011 restricted https://hdl.handle.net/20.500.11937/10223 unknown Mizunami Fossil Museum http://www.city.mizunami.lg.jp/docs/2014092922803/ http://hdl.handle.net/20.500.11937/10223 Journal Article 2011 ftcurtin https://doi.org/20.500.11937/10223 2023-05-30T19:25:13Z A specimen, originally described as ‘Pentacrinus’ from the Middle–Upper Jurassic of central Japan, is re-analysed and now recognised to be a new species of the genus Chariocrinus Hess, 1972, from the Lower Cretaceous. Chariocrinus japonicus sp. nov. has nine columnals per noditaxis, low columnal height, a pentalobate to sub-pentagonal articular facet and an impersistent median ridge on the latera. Chariocrinus was originally described from the Middle Jurassic of Switzerland, and has also been recognised from elsewhere in Europe, Antarctica and North America. The Japanese specimen represents the first report of Chariocrinus in the Cretaceous of Asia, thereby significantly extending both its temporal and eastern geographical range. This specimen suggests Chariocrinus had a global distribution and, as such, conforms with the distribution of other Mesozoic and modern isocrinine gener Article in Journal/Newspaper Antarc* Antarctica Curtin University: espace Hess ENVELOPE(-65.133,-65.133,-67.200,-67.200) Median Ridge ENVELOPE(-62.833,-62.833,-64.983,-64.983) |
institution |
Open Polar |
collection |
Curtin University: espace |
op_collection_id |
ftcurtin |
language |
unknown |
description |
A specimen, originally described as ‘Pentacrinus’ from the Middle–Upper Jurassic of central Japan, is re-analysed and now recognised to be a new species of the genus Chariocrinus Hess, 1972, from the Lower Cretaceous. Chariocrinus japonicus sp. nov. has nine columnals per noditaxis, low columnal height, a pentalobate to sub-pentagonal articular facet and an impersistent median ridge on the latera. Chariocrinus was originally described from the Middle Jurassic of Switzerland, and has also been recognised from elsewhere in Europe, Antarctica and North America. The Japanese specimen represents the first report of Chariocrinus in the Cretaceous of Asia, thereby significantly extending both its temporal and eastern geographical range. This specimen suggests Chariocrinus had a global distribution and, as such, conforms with the distribution of other Mesozoic and modern isocrinine gener |
format |
Article in Journal/Newspaper |
author |
Hunter, Aaron Oji, T. Ewin, T. Kitazawa, K. |
spellingShingle |
Hunter, Aaron Oji, T. Ewin, T. Kitazawa, K. Chariocrinus japonicus, a new species of isocrinid crinoid (Articulata) from the Lower Cretaceous of Takayama City, central Japan |
author_facet |
Hunter, Aaron Oji, T. Ewin, T. Kitazawa, K. |
author_sort |
Hunter, Aaron |
title |
Chariocrinus japonicus, a new species of isocrinid crinoid (Articulata) from the Lower Cretaceous of Takayama City, central Japan |
title_short |
Chariocrinus japonicus, a new species of isocrinid crinoid (Articulata) from the Lower Cretaceous of Takayama City, central Japan |
title_full |
Chariocrinus japonicus, a new species of isocrinid crinoid (Articulata) from the Lower Cretaceous of Takayama City, central Japan |
title_fullStr |
Chariocrinus japonicus, a new species of isocrinid crinoid (Articulata) from the Lower Cretaceous of Takayama City, central Japan |
title_full_unstemmed |
Chariocrinus japonicus, a new species of isocrinid crinoid (Articulata) from the Lower Cretaceous of Takayama City, central Japan |
title_sort |
chariocrinus japonicus, a new species of isocrinid crinoid (articulata) from the lower cretaceous of takayama city, central japan |
publisher |
Mizunami Fossil Museum |
publishDate |
2011 |
url |
https://hdl.handle.net/20.500.11937/10223 |
long_lat |
ENVELOPE(-65.133,-65.133,-67.200,-67.200) ENVELOPE(-62.833,-62.833,-64.983,-64.983) |
geographic |
Hess Median Ridge |
geographic_facet |
Hess Median Ridge |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
http://www.city.mizunami.lg.jp/docs/2014092922803/ http://hdl.handle.net/20.500.11937/10223 |
op_doi |
https://doi.org/20.500.11937/10223 |
_version_ |
1768379717776310272 |