207 LiGNiTic Stage 15 



Ccanothiis americanusf Lin., Carya olivceformis Nutt., Gledit- 

 schia triacanthos ly. , and Aco7'2is calamus. 



In 1888 Loughridge describes other fossiliferous outcrops 

 which ina}^ belong to the Lignitic stage, as follows : 



"On the road leading south from Paducah, and at points 

 there and four miles distant, fine exposures are traced in 

 the deep washes by the side of the road. 



'"There is a broad valley on the south of Eden's hill and 

 on rising from this valle5^ going southward, the most northern 

 of these outcrops is seen. The next exposure is about one mile 

 farther south, or on the vsouth side of this hill, consisting of 

 twelve feet ( exposed ) of lignitic joint, clay, below four feet of 

 micaceous sand-rock, in which are large numbers of casts of 

 Lower Eocene fossils ; about thirtj^ feet of Quaternary gravel 

 and loam overlie the bed. The strata seem to dip slightly to 

 the north. 



" The laminated sand-rock is again exposed a mile south, on 

 the eastern edge of the hill of hard Onondaga quartzite at Mr. 

 Byer's ; its outcrop is about fifty feet thick ; the strata are in an 

 almost vertical position, and have a north and south strike. 

 It is in the bed of the creek, and may have fallen in at some 

 time by the undermining adtion of water, though it is not broken 

 up and its bedding is very regular. Casts of fossil shells were 

 also found here. Its surface is about five feet below that of 

 the outcrops on the north side of the valley, in the sedlion just 

 described. On the west side of the hill of quartzite, and but 

 a short distance from this sand-rock, a well, when dug, struck 

 blackish joint clay at about fifteen feet, and penetrated it for 

 thirty-five or forty feet without passing through it. " * * * 



Fossil casts found here have been determined by Prof. Heil- 

 prin, of the Philadelphia Academy of Science, to comprise the 

 following : 



' 'Mysia. — species probably M. ungulina. 

 Leda. — species probably L. protexta. 

 Leda — species indet. 

 Nucula. — species probably N. ovula. 

 Turritella. — species Turritella nioi^'toni.'^ 



— Heilpin. 



