﻿432 



STRATIGRAPHICAL DISTRIBUTION OF 



FAMILIES, 

 GENERA, AND SPECIES. 



LOWER DIVISION. 



Lias. 



Inferior Oolite. 



Great Oolite. 



Lower 

 Lias. 



Middle 

 Lias. 



Upper 

 Lias. 



r, 



Murclii- 

 soiiEe zoue. 



Hurrvphxie- 

 siamis 

 zone. 



Parkinsoni 

 zone. 



Fuller's 

 Earth. 



Stonesfield 

 Slate. 



Great 

 Oolite. 



Bradford 

 Clay. 





Fam. Apiockinllve. 

 Apiocrinus Parkinsoni, Schlotheim . 



elegans, Defrance . 



exutus, M'Coy 

 Millericrinus Prattii, Gray 



obconicus, Goldfuss 



Koninckii, Wright 



echinatus, Schlotheim 



• 













1 





* 

 # 



* 

 * 



* 



10 



17 



12 







49 







8 28 



1 



9 



166 Species. 



ECHINOIDEA 



ASTEROIDEA 



OPHIUROIDEA 



CRINOIDEA 



