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THE CRETACEOUS ROCKS OF BRITAIN. 
The higher beds (zone of Holaster subglobosus) seem to contain 
but few fossils, but Messrs. Griffiths and Brydone inform us that 
they have obtained the following species : — 
Holaster subglobosus. 
Terebratulina striata. 
Ostrea vesicularis. 
Pecten orbicularis. 
Teredo ampbisbsena. 
Mr. Hill obtained Hoi. subglobosus, Hoi. trecensis and Discoidea 
cylindricci from this zone, but no fossils have yet been obtained 
from the Belemnite Marl. 
