32 Bulletin 12 160 



shale rests diredlly on the Lower Silurian. The following Lower 

 Silurian species were colle<5led from the bluish shelly sandstone 

 just below the Black shale: 



Murchisonia sp. c, Platysirophia crassa r, Platy strophia lynx c. 



The Black shale about Parksville is about twenty-five feet 

 thick. No fossils were found in the blue clay shale above the 

 Black shale here. 



In the Riverside sandstone the following fauna was found 

 about 125 feet above the Black shale: 



Station 28 B. — Old sandstone quarry one and one-half miles 

 west of Parksville. 



Camarotoechia sp. r, Cryptonella eudora c, Eumentria sp. r, 

 Hemipronites crenistria c, Platyceras lodense r, ProduHus alter- 

 natus r, Produflus schumardanus r, Produftus seniireticulatus , Re- 

 ticularia pseudolineata c, Spirifer keokuk c, Spirifer lateralis f r. 



Crab Orchard, Kentucky. 



The Devonian limestone appears to be entirely absent in the 

 vicinity of Crab Orchard. The following conne(5led seAion in- 

 cludes the lowest beds observed in the vicinity of the springs and 

 those outcropping in the knobs southwest of the town. 



Se(5lion at Crab Orchard: 



Shelly sandstone 50 ft. 



Shelly crinoidal limestone 3-4 ft. 



Shelly sandstone and clay shale (partly 



covered) '. 100 ft. 



Black shale 35 ft. 



Buff to brownish fine grained sandstone... 10 ft. 



No fossils were found in the fine grained sandstone below the 

 Black shale. 



