﻿THE OOLITIC ECHINODERMATA. 



429 





MIDDLE DIVISION. 



UPPER DIVISION. 



Observations and Foreign 

 Localities. 



Forest 

 Marble. 



Cornhrash. 



Kelloway 

 Rock. 



Oxford 

 Clay. 



Lower 

 Cale Grit. 



Coralline 

 Oolite. 



Upper 

 Cale. Grit. 



Kimme- 

 ridge Clay. 



Portland 

 Sand. 



Portland 

 Oolite. 



Pnrbeck 

 Beds. 







1 





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