NICKLES AND BASSLER.] 



GEOLOGIO DISTRIBUTION. 



109 



Lists of species — Continued. 

 CARBONIFEROUS— Continued. 



Fistulipora carboiiaria ITlrich 



iKululitVra Meek , 



Piuiiatoi)ora l)ellula Ulrich 



nereidis (White) 



trilineata (Meek) 



whitii Foerste 



Polypora crassa Ulrich 



distincta Ulrich 



niexicana Prout 



nodocarinata Ulrich 



8piiuilifera Ulrich 



stragiila White 



subniarginata Meek 



whitei Ulrich 



whitei-insculpta Ulrich 



Prismopora minima Ulrich 



? Kerrata Meek 



triangulata (White) 



Rhnmbnpora crass^a Ulrich 



exilis (Dawson) 



lepidodendroides ileek . . 



multipora Foerste 



nicklesi Ulrich 



Septopora biserialLs (Swallow) 



biserialis-gracilis (Meek)... 



biserialis-nervata Ulrich 



delicatula Ulrich 



pinnata Ulrich 



robnsta Ulrich 



Stenopora carbonaria (Worthen) 



carbonaria-conferta Ulrich . 

 carbonaria-maculosa Ulrich 



ohioensis Foerste 



? signata Ulrich 



Streblotrypa prisca (Gabb and Horn). 



Thamniscus octonarius Ulrich 



sevillensis Ulrich 



Coal 

 Measures. 



X 



X 

 X 



X 

 X 

 X 

 X 



X 

 X 



Permian. 



X 

 X 

 X 

 X 

 X 

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 X 



X 

 X 



X 

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 X 

 X 

 X 

 X 

 X 

 X 

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 X 

 X 



X 

 X 



X 



