The Warminster Greensand Fossils. 



265 



It will be noticed that the list of Mollusca is not a long one, and 

 that there is a remarkable absence of Brachiopoda. Echinoderms, 

 again, are not numerous either in species or individuals, and as 

 regards two of the species, Cardiaster Perezil and Echinospatagiis 

 Collegnii, it is very doubtful whether they came from this part of the 

 Greensand : even if they really came from the neighbourhood of 

 Warminster, it is more probable that they were obtained from the 

 yellow sands above the Malmstone which belong to the zone of 

 Ammonites rostratus. 



Pecten asper is a common fossil in these beds, and so far as this 

 district is concerned they might naturally be grouped as the zone of 

 P. asper. 



We now come to the fauna of the uppermost bed of greensand 

 which overlies the chert beds, and which is specially fossiliferous on 

 the farms of Chute and Eye Hill. It is from these localities that 



