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Ludlovian Classification—A Reply

Published online by Cambridge University Press:  01 May 2009

C. H. Holland ,
J. D. Lawson  and
V. G. Walmsley
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Abstract

The revised classification of the Ludlovian rocks is defended. It is maintained that there is no need for separate rock-stratigraphical and biostratigraphical classifications. The nine new divisions are, therefore, combined units; their number is justified by the detailed mapping and their names are dictated by the requirements of the rocks and not by an arbitrary code of rules. The old classification, using Aymestry Limestone, is considered to be still usable as a crude rock-stratigraphical classification.

Type
Articles
Information
Geological Magazine , Volume 99 , Issue 5 , October 1962 , pp. 393 - 398
Copyright
Copyright © Cambridge University Press 1962

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References

REFERENCES

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Holland, C. H., Lawson, J. D., and Walmsley, V. G.. The Silurian Rocks of the Ludlow District, Shropshire. Bull. Brit. Mus. (Nat. Hist.) Geology (in the press).Google Scholar
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