THE DESCRIPTION AND STRATIGRAPHIC RELATIONSHIPS. 409 



The fossils from the horizon of the Lower Block Coal at Bowling Green, 

 Roadman School and Liberty School localities, although insufficient for 

 definite correlation with the Pottsville in the type locality, very likely rep- 

 resent a horizon somewhere in the lower half of the Upper Pottsville. 



The plants from the Asherville locality, with a single exception, are from 

 the fire clay under the Upper Block Coal, and are as follows: 



Sphenophyllum cuneifolium (Sternb.) Zeiller. 



Lepidodendron obovatum Sternb. 



Lepidodendron aculeatum Sternb. 



Pecopteris cf. abbreviata Brongn. 



Cardiocarpon obtusum n. sp. ' 



Cardiocarpon cordatum n. sp. 



Cardiocarpon communis n. sp. 



Cardiocarpon irregulare n. sp. 



Cardiocarpon euneatum n. sp. 



Cardiocarpon gracile n. sp. 



Of the above species S]^henophyUiivi cuneifolium is the onh' plant that has 

 much value as a horizon marker. This species was represented by the rigid, 

 coarse veined variety, characteristic of the upper Pottsville" and was ob- 

 tained from a thin layer of ferrugineous concretions just above the Upper 

 Block Coal. 



Only three species of plants were found in the shales overljing the Upper 

 Block Coal at Baird's mine, the following forms being represented: 



Cordaites Robbii? Dn. 

 Cordaianthus sp. indet. 

 Cardiocarpon acuminatum n. sp. 



These forms are of very little value in determining the age of the horizon 

 from which they were obtained. 



The few fragments of plants from the Reelsville locality are insufficient 

 for correlating that horizon with the Pottsville of other localities. 



II White. D.. 20th An. Rep. U. S. G. S. Part II. p. S99, 1900. 



