ORDOVICIAN SYSTEM: NAUNGKANGYI STAGE. 



Lower Naungkangyi Fauna — contd. 



Nearest Allies. 



R. mutabilis Ulrich 



R. pauper a ., 



Protocrisina eriyva 

 Ulrich. 



ph. corticosa Ulrich . 



f Mesotrypa White- 

 I avesi Nich. 



\ ,,,,, 

 ^ Foord. 



Slrophomena imbrex 



Pandor. 

 Slrophomena line- 

 alissima Salter. 



Horizon and Distbibution of Species or 

 Nearest Ally. 



pq 



O 



2 § 

 0-i PJ 



Ag 

 Ag 



pq 



"is c 



a 



<D 



o 



a 

 < 



Cc 

 Co 

 Cc 



Cc 

 Cc 



Cc 



Remarks. 



Cc, Niti Pass. 



