Chariocrinus -(Crinoidea: Articulata) from the Latady Formation, Behrendt and Hauberg Mountains, Ellsworth Land, Antarctica

Show simple item record Eagle, M.K. en Hikuroa, D. en 2009-08-25T06:03:13Z en 2009-08-25T06:03:13Z en 2003 en
dc.identifier.citation New Zealand Journal of Geology and Geophysics 46 (4), 529-537. 2003 en
dc.identifier.issn 0028-8306 en
dc.identifier.other eid=2-s2.0-30244508062 en
dc.identifier.uri en
dc.description An open access copy of this article is available from the publishers website. en
dc.description.abstract 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. en
dc.publisher Royal Society Of New Zealand en
dc.relation.ispartofseries New Zealand Journal of Geology and Geophysics en
dc.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 en
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dc.title Chariocrinus -(Crinoidea: Articulata) from the Latady Formation, Behrendt and Hauberg Mountains, Ellsworth Land, Antarctica en
dc.type Journal Article en
dc.subject.marsden Fields of Research::260000 Earth Sciences::260100 Geology en
pubs.issue 4 en
pubs.begin-page 529 en
pubs.volume 46 en
dc.rights.holder Copyright: Royal Society of New Zealand en
pubs.end-page 537 en

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