192 



H. HICKS ON THE SUCCESSION OF 



Table (continued). 



Genera. 



o 



u 



a 



r 



2 



1 



© 



IP 



3 



SP 



So 



tie 



Oh 



3 



o 



O 



a 



■i 



s 



1 



O 



&JD 



© 



© 



© 



6 

 '© 

 d 



<D 



1 

 Hi 



jo 



'© 



1 



© 



'© 

 © 



O 

 1i 



Brachiopoda. 

 Lingulella 



* 



it 



it 



* 



* 



* 



it 



* 



* 



it 



* 

 * 



* 

 * 



'?" 



X 



it 

 it 

 ? 



it 



it 

 * 



it 

 it 



it 

 it 



X- 



# 



* 



X 

 * 



X 



X 

 ? 



? 



* 



X 

 X 

 ? 



X 



X 

 X 



it 



it 



X 

 X 



X 



X 



X 



* 

 X 



X 



X 



x 



x 

 x 

 x 



X 

 it 



it 

 it 

 it 

 it 



it 

 it 



it 



X 



X 



x 



Lingula 



Discina 



Obolella 



Kutorgina 



Dinobolus ? 



Acrotreta 



Sipbonotreta 



Crania 



Orthis 



Lepteena 



Stropbomena 



Lamellibranchiata . 



Ctenodonta 



Palasarca 



Glyptarca 



Davidia 



Modiolopsis 



Eedonia 



Ribieria 



Gasteropoda. 



Opbileta 



Pleurotomaria 



Euompbalus 



Murchisonia 



Heteropoda. 



Maclurea 



Belleropbon 



Pteropoda. 

 Tbeca 



it 



Cyrtotheca 



Stenotheea 





Conularia 



Cephalopoda. 



Orthoceras ". 



Cyrtoceras 



Planta? 



Buthotrepis 



Eophyton? 



Oldham ia (Ireland) 



* 



