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Episodes 1985; 8(4): 231-235

Published online December 1, 1985

https://doi.org/10.18814/epiiugs/1985/v8i4/002

Copyright © International Union of Geological Sciences.

'Transition Rocks and Grauwacké' - The Silurian and Cambrian Systems through 150 Years

Michael Bassett 1,2,3

1Commission Bureau
2National Museum of Wales, Cardiff, U.K.
3Palaeontological Association

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The terms Silurian and Cambrian were first published in a geological sense in 1835. This article reviews the historical background to the concept and early application of these stratigraphical divisions, and their international status after 150 years of development.