149 Devonian of Southern Indiana 21 



Surface claj^ 3' 



Black shale 18" 



Argillaceous sandstone with chert 5' 18" 



Fine grained sandstone ( ' ' Cement rock' ' ) . . . 9' 



Station 18 A. — Cement quarry at Watson. 



The following species were obtained from the fine grained 

 sandstone: 



Athyris vittata a, Atrypa reticularis c, Chonetes yandellamcs a, 

 Fenestclla sp. c, Lichenalia sp. c, Michelinia favositoidea r, Spiri- 

 fer byrnesi c, Spirifer graiiuliferus a, Spirifer iowensis c, Spirifer 

 varicosus a, Stropheodonta demissa a, Stropheodonta heviispherica c. 



Station 18 B. — Cement quarry at Watson. 



The fossils in this list are from the residual clay at the quarry 

 and represent the same fauna as at 18 A. ^ 



Athyris spiriferoides f , Athyris vittata, Atrypa retiai/aris Hall 

 a, Camarotlxchia congregata H., Chonetes yandellanus f a, Meris- 

 tella haskinsi Hall, Meristella unisulcata, Orthis livia Billings, 

 Paracyclas elliptica Hall, Phacops ra^ia Hall, Schizophoria striatida 

 Schlot., Spirifer davisii Nettleroth, Spirifer fornaculus Hall, 

 Spirifer grayinlosus Hall, Spirifer oiveni, Spirifer segmentus Hall, 

 Spirifer varicosus Hall, Zaphrentis sp. 



Charlestown. 



Fourteen Mile creek cuts through the Jefferson ville limestone 

 and exposes the Niagara sandstone and shale along the sides of 

 its valley a short distance east of Charlestown. The abundance 

 of well-preserved Devonian fossils in the residual limestone clay 

 about Charlestown has long made it a favorite locality for colle(5t- 

 ors. The following Devonian species from Charlestown are in 

 the Indiana State Museum: 



Athyris vittata c, Atrypa retic7ilaris c, Loxoncma hydraiilicumo., 

 Microdiscus sp. c, Nucula niotica c, Spirifer granuliferus r, Spiri- 

 fer gregarius r, Spirifer segmentus r, Stropheodonta hcmispher- 

 ica r. 



