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Journal of science of the Hiroshima University. Series C, Geology and mineralogy 7 巻 4 号
1977-05-25 発行
A New Genus Levantotrigonia nov. gen.
NAKANO Mitsuo
Abstract
In this paper, the writer proposes Levantotrigonia nov. gen. typified by Trigonia lewisi BLAN-CKENHORN, 1890. This new genus is one of the most aberrant and interesting Trigoniids, and may be an off-shoot derived possibly from Frenguelliella by the effacement of the carinae and the development of radial striation on the surface.
The new genus is characteristic in the Aptian of the Levant Coast region where the aberrant and endemic Arabitrigonia and other Trigoniid genera collected. In this respect, the Levant Coast is quite distinct from the other regions in the so-called Mediterranean province.
The new genus is characteristic in the Aptian of the Levant Coast region where the aberrant and endemic Arabitrigonia and other Trigoniid genera collected. In this respect, the Levant Coast is quite distinct from the other regions in the so-called Mediterranean province.
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