572 JOS I AH BRIDGE 



Fenestella tenuissima Cumings 



Fenestella triserialis Ulr. 



Fenestella triserialis Ulr. ? 



Cystodictya lineata Ulr. 

 *Polypora burlingtonensis Ulr. 



Polypora gracilis Prout 



Polypora hallana Prout 



Polypora maccoyana Ulr. 



Polypora radialis Ulr. 



Pinnatopora conferta Ulr. 



Hemitrypa perstriata Ulr. ? 



Rhombopora dichotoma Ulr. ? 



Rhombopora incrassata. Ulr. ? 

 *Schellwienella burlingtonensis Weller 

 *Productus parvulus Winchell 

 \Productus ovatus Hall 



Produclus mesalis Hall ? 



Pustula biseriatus (Hall) 

 *Rhipidomella diminutiva Rowley 

 *Schizophoria subelliptica (W. & W.) 



Tetracamera missouriensis Weller 



Rhynchopora beecheri Greger 

 *Dielasma burlingtonensis (White) 

 *Cyrtina burlingtonensis Rowley 



Cyrtina neogenes Hall and Clarke 

 *Spirifemia solidirostris White 



Spiriferina norwoodana (Hall) 



Delthyris similis Weller 



Spirifer rostellatus Hall 



Spirifer logani Hall 



Spirifer tenuimarginatus Hall ? 



Spirifer tenuicostatus Hall 

 ^Brachythyris sub orbicularis Hall 



Pseudosyrinx keokuk Weller 



Reticularia pseudolineata (Hall) 



Eumetria vemeuiliana Hall 

 *Nucleospira obesa Rowley 

 *Cliothyridina incrassata (Hall) 



Cliothridina parvirostris (M. & W.) 



Mollusca 



Cypricardinia sp. 

 Orthonychia pabulocrinus (Owen) 

 Platyceras obliquus (Keyes) 

 Platyceras equilateralis Hall 

 Undetermined forms 



