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The Coral Rag of Upware

Published online by Cambridge University Press:  01 May 2009

Blake  and
Hudleston
Blake
Affiliation:
London
Hudleston
Affiliation:
London
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Abstract

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Type
Correspondence
Information
Geological Magazine , Volume 5 , Issue 2 , February 1878 , pp. 90 - 92
Copyright
Copyright © Cambridge University Press 1878

References

1 It may be necessary here to remind the readers of the Geol. Mag. that the Corallian of England admits of four primary subdivisions, as follows in descending order: 1. Supracoralline, or equivalents of the Upper Calcareous Grit; 2. Coral Rag, or zone of Cidarias florigemma; 3. Coralline Oolite, or zone of Am.plicatilis; 4. Lower Calcareous Grit, or zone of Am. perarmatus.