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Note on the Zone of Anthraconauta phillipsi in the Denbighshire Coalfield

Published online by Cambridge University Press:  01 May 2009

Henry H. Simpson
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Extract

The scarcity of shells in the Denbighshire Coalfield has been commented on by a number of observers, and though numerous Carbonicola and Naiadites are to be found at certain horizons Anthracomya is exceedingly rare, particularly in the lower part of the Middle Measures. This lack of molluscan remains has made the zoning of the Coal Measures in Denbighshire a matter of considerable difficulty and only one occurrence of A. phillipsi (Williamson) has hitherto been recorded, namely from the Coed-yr-allt Beds, the middle division of the Upper Coal Measures.

Type
Original Articles
Information
Geological Magazine , Volume 73 , Issue 6 , June 1936 , pp. 278 - 280
Copyright
Copyright © Cambridge University Press 1936

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References

page 278 note 1 “Geology of the Country around Wrexham, II,” Mem. Geol. Surv., 1928, p. 36.Google Scholar

page 278 note 2 Ibid., p. 96.

page 278 note 3 Geol. Mag.,LXXII, 1935, 165.Google Scholar