DEVONIAN SYSTEM : PLATEAU LIMESTONE. 209 



Padaukpin Fauna — continued. 



ASIA. 



N. America. 



Australia. 



Remarks. 



Western. 



Central. 



Eastern. 



Armenia. 



N. Persia 



Hindu Kush. 



Turkestan. 



Tian Shan. 



a 



tl 

 c 



a 



Siberia. 



Se Tchouan. 



Yunnan. 



Kwang-si. 



























aff. A. ccmpanulata 



























McCoy, Carb. Limest ; 



























A. conferta Winch., 



























Hamilton Group. 























X 





Typically Silurian. 





















































aff. Str. (Cccnostroma) 



























incrnstans Hall and 



























Whitf., Dev. of Iowa. 



p 



