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IV.—On the Occurrence of Two Species of Madreporaria in the Upper Lias of Gloucestershire

Published online by Cambridge University Press:  01 May 2009

Robert F. Tomes
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Extract

The few recorded Madreporaria of the Upper Lias possess considerable interest on account of the great generic as well as specific differences which exist between them and those from the Middle and Lower Lias, though it might seem probable that the discovery of a greater number of species would diminish that discrepancy. Such a conclusion has not, however, by any means been substantiated by further acquaintance with those from the Upper Lias of the district of which I am about to speak.

The late Mr. Charles Moore in his exhaustive paper, “On the Middle and Upper Lias of the South-West of England,” gives sections of the Upper Lias exposed in quarries on the hills at Stanley and Dumbleton.

Type
Original Articles
Information
Geological Magazine , Volume 3 , Issue 3 , March 1886 , pp. 107 - 111
Copyright
Copyright © Cambridge University Press 1886

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References

page 107 note 1 Proceed. Somerset Arch. and Nat. Hist. Soc. vol. xiii.Google Scholar

page 110 note 1 I limit my remarks to such species of Thecocyathus as have been met with in this country, one of which has been obtained from the Inferior Oolite of Dorsetshire. M. de Fromentel describes four as occurring in the French Oolites.