DEVONIAN AND CAEBONIFEROUS FAUNA. 



199 



IfJ. Light gray siliceous limestone 1,000 



8,560 



In tlie l)luisli Ijlack limestone at the top of No. o the foUowiug- Lower 

 Carboniferous tauna comes in : 



Amplexus, sp.? 

 Syringopora, sp. ? 

 Acervularia pentagona. 

 Fenestella, sp. ? 

 Cliouetcs, sp.? 

 Clionetes grauulifera. 

 Cbouetes, sp.? 

 Productiis nebrascensis. 

 Productiis puiu'tatus. 

 Produetus teuuicostatus. 

 Productiis semireticulatus. 

 Produetus, sp? 

 Produetus, sp? 

 Orthis resupinata. 

 Sti'eptorliyiiclius ereiustria. 

 SjTiiigotli,\Tis cuspidatus. 

 Spirifera piuguis. 

 Spirifera x)ulehra. 

 Spirifera striata. 



Sijirifera (M) liueata. 



Cyrtiua, sp?. 



Athyris subquadrata. 



Rhynebouella. 



Terebratula, sp. ? 



Platyceras, sp.? 



Belleropbou, sp. ? 



EuoQiphalus, sp. ? 



Euomphahis laxus. 



Euoiuphalus (Straparollus) opbinea. 



Straiiarollus, sp. ? 



Holopea, sp. ? 



Loxonema. 



Loxonema. 



Pleurotomaria, sp. ? 



Pleurotomaria, sp. ? 



Edniondia, 2 sp. ? 



Leperditia, sp.? 



Prcetus peroccidens. 



The following' Devonian fanna was collected from No. 8 : 



Lingula (like L. ligea). 



Ortbis impressa. 



Produetus shumardiamis. 



Produetus (like P. lachrymosa). 



Stropbodonta, sp.? 



Spirifera, sp.? 



Nueleospira eoneinna. 



Cyrtiua baiuiltonensis. 



Aiuboeo'lia (like young of A. uinbonata) 



Rbyncbonella duplieata. 



Ebynebonella sinuata. 

 Atliyris? sp. ? 

 Pentanierus lotus. 

 Modiomorpha, sp? 

 Euouipbalus, sp.? 

 Platyostoina lineata? 

 Ortboeeras, sp.? 

 Ortlioeeras, sp. ? 

 Leperditia, sp. ? 



In this section we have abont S,0(IO feet of nearlv contiinions lime- 

 stone strata, broken occasionally l)v thin Ix'ds of vellow sandstone, the 



