Upper Cretaceous echinoids from James Ross Basin, Antarctica

被引:7
作者
Néraudeau, D
Crame, JA
Kooser, M
机构
[1] Univ Rennes 1, Lab Paleontol, F-35000 Rennes, France
[2] British Antarctic Survey, Cambridge CB3 0ET, England
[3] Univ Calif Riverside, Dept Earth Sci, Riverside, CA 92521 USA
基金
美国国家科学基金会;
关键词
echinoids; senonian; James Ross Basin; Antarctica;
D O I
10.1016/S0016-6995(00)80079-0
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
New palaeontological collections made from Upper Cretaceous strata exposed within the James Ross Basin, Antarctica, include ten echinoid species. Five species are described for the first time from Antarctica, while four others, previously published by Lambert in 1910, are revised according to the new data. The described echinoids comprise two new species, Huttonechinus antarctica nov. sp. and Nordenskjoeldaster ? australis nov, sp., specimens closely related to an European spatangoid, Micraster aff. regularis, and three taxa that cannot be named at the specific level owing to Door preservation. In total, the fauna comprises three species of regular echinoids, five holasteroids, and two spatangoids. The ten taxa range in age from Santonian to Early Maastrichtian. The richest faunas are those associated with the prolific Gunnarites antarcticus ammonite assemblage. Several forms show affinities with Australia, New Zealand, south-east Africa and South America. There are indications that this is an essentially deep shelf echinoid fauna.
引用
收藏
页码:455 / 466
页数:12
相关论文
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