ORDOVICIAN SYSTEM : NAUNGKANGYI STAGE. 



103 



Lower Naungkangyi Fauna — contd. 



Nearest Allies. 



f C. bulbulus Miller 

 j and Gurley. 



| C. sphceroidalis Mil- 

 1^ ler and Gurley. 



P. frnqum Eichw. 



f Ptilodictya ■plumnla 

 I Salter! 



j Ptilodictya d it 7/ < >toma 

 { Portl. 



Horizon and Distribution of Species or 

 Nearest Ally. 



pq 



.5 .2 



> '53 



L.Lo 



L. Lo 



T3 



o 



Co. 



Cc 



a 



Wk 



Wk 



Remarks. 



(?) Hemicosmifes 

 Loczyi. Pupjao 

 S. W. Yunnan. 



Cc, Nsti Pass. 



Ireland. 



