CO 



AMERICAN FOSSIL BRYOZOA. 



[bull. 173 



Genus. 

 Petigopora Ulrich. 

 Phacelopora Ulrich. 

 Phsenopora Hall. 

 Phractopora Hall. 

 Phyllodictya Ulrich. 

 Phyllopora King. 

 Phylloporina Ulrich. 

 Pinacotrypa Ulrich. 

 Pinnatopora Vine. 

 Polypora McCoy. 

 Prasopora Nicholson and 



Etheridge Jun. 

 Prismopora Hall. 

 Proboscina Audouin. 

 Protocrisina Ulrich. 

 Proutella Ulrich. 

 Ptilocella Simpson. 

 Ptilodictya Lonsdale. 

 Ptilopora McCoy. 

 Ptiloporella Hall. 

 Ptiloporina Hall. 

 Ptilotrypa Ulrich. 

 Ramipora Toula. 

 Reteporidra. 

 Reteporina D'Orbigny. 

 Reptaria Rolle. 

 Rhabdomeson Young and 



Young. 

 Rhinidictya Ulrich. 

 Rhinopora Hall. 

 Rhombopora Meek. 

 Rhopalonaria Ulrich. 

 Scalaripora Hall. 

 Scenellopora Ulrich. 

 Sceptropora Ulrich. 

 Selenopora Hall. 

 Semicoscinium Prout. 

 Semiopora Hall. 

 Septopora Prout. 

 Spatiopora Ulrich. 

 Sphragiopora Ulrich. 

 Stellipora Hall. 

 Stenopora Lonsdale. 

 Stictopora Hall. 

 Stictoporella Ulrich. 

 StictoiJorina Hall and 



Simpson. 

 Stictotrypa Ulrich. 

 Stomatopora Bronn. 

 Streblotrypa Ulrich. 

 Stromatotrypa Ulrich. 

 Strotopora Ulrich. 

 Synocladia King. 



Family. 

 Heterotrypidse. 

 Phaceloporidse. 

 Ptilodictyonidae. 

 Cystodictyonidee. 

 Rhinidictyonidae. 

 Fenestellidfe. 

 Phy lloporinidae. 

 Fistuliporidje. 

 Acanthocladiidse, 

 Fenestellidse. 

 Monticuliporidse. 



Cystodictyonidse. 



Diastoporidse. 



Idmoneidfe. 



Cycloporidpe. 



Cystodictyonidae. 



Ptilodictyonidse. 



Acanthocladiidse. 



Fenestellidfe. 



Fenestellidse. 



Stictoporellidse. 



Acanthocladiidfe. 



Fenestellidse. 



Fenestellidse. 



Diastoporidse. 



Rhabdomesontidse. 



Rhinidictyonidae. 



Rhinoporidpe. 



Rhabdomesontidse. 



Rhopalonariidse. 



Cystodictyonidse. 



Ceramoporidse. 



Arthrostylidse. 



Fistuliporidse. 



Fenestellidse. 



Cystodictyonidse. 



Acanthocladiidse. 



Ceramoporidae. 



Sphragioporidse. 



Constellariidte. 



Batostomellidse. 



Stictoporellidee. 



Stictoporellidse. 



Ptilodictyonidae. 



Rhinoporidffl. 



Diastoporidae. 



Rhabdomesontidse. 



Trematoporidse. 



Fistuliporidae. 



Acanthocladiidae. 



Suborder. 

 Trepostomata. 

 Cyclostomata. 

 Cryptostomata. 

 Cryptostomata. 

 Cryptostomata. 

 Cryptostomata. 

 Cryptostomata. 

 Cyclostomata. 

 Cryptostomata. 

 Cryptostomata. 

 Treposiomata. 



Cryptostomata. 



Cyclostomata. 



Cyclostomata. 



Cryptostomata. 



Cryptostomata. 



Cryptostomata. 



Cryptostomata. 



Cryptostomata. 



Cryptostomata. 



Cryptostomata. 



Cryptostomata. 



Cryptostomata. 



Cryptostomata. 



Cyclostomata. 



Cryptostomata. 



Cryptostomata. 



Cryptostomata. 



Cryptostomata. 



Ctenostomata. 



Cryptostomata. 



Cj'^clostomata. 



Cryptostomata. 



Cyclostomata. 



Cryptostomata. 



Cryptostomata. 



Cryptostomata. 



Cyclostomata. 



Cryptostomata. 



Trepostomata. 



Trepostomata. 



Cryptostomata. 



Cryptostomata. 



Cryptostoicata. 



Cryptostomata. 



Cyclostomata. 



Cryptostomata. 



Trepostomata. 



Cyclostomata. 



Cryptostomata. 



