HACKBERRY STAGE OF THE UPPER DEVONIAN. 1 89 



Aulopora annectens Clarke • 



Aulopora sp. 



Aulopora n. sp. 



Syringopora sp. 

 Hydrozoa (?) (Stromatoporoidea) 



Stromatoporella sps. 



Stromatoporella solidula (H. & W.) 



vStromatoporella incrustans (H. & W.) 



Stromatoporella n. s. 



Syringostroma planulatum (H. & W.) 



Idiostroma n. sp. 



Idiostroma n. sp. 

 Vermes 



Spirortis omphaloides (Goldfuss) 



Forms probably belonging to the Tnbulifera. 

 Echinodermata 



Various unidentified remains, fragmental, of crinoids. 

 Molluscoidea 

 Bryozoa 



Hederella alternata (H. & W.) ■ 



Hederella sp. 



lyioclsma? sp. 

 Brachiopoda 



Schizophoria striatula (Schloth.) 



L^ptostrophia canace (H. & W.) 



Strophonella reversa Hall 



Productella hallana Walcott. 



Atrypa reticularis (Linn.) 



Atrypa hystrix Hall 



Atrypa hystrix planostulcata Webster 



Spirifer orestes H. & W. 



Sp^irifer hungerfordi Hall 



Spirifer whitneyi Hall 

 M oil u sea 



Pelecypoda • 



Paracyclas validalinea Webster 



Paracyclas sabini White 



Paracyclas elliptica Hall 



Leptodesma sp. 

 Gastropoda 



