18 KENTUCKY GEOLOGICAL SURVEY. 



However, as the sediments were deposited in different basins 

 and under- very different conditions, and as the faunas have 

 scarcely anything in common, it seems better that they should 

 bear different names; hence Orton' s name Eden is revived for 

 the formation developed in the Ohio Valley. Orton 7 takes the 

 view that the TJtica is well developed underground in northern 

 Ohio, as shown by well-drillings, but thins out southward to- 

 wards the Ohio river. He also considers that as the TJtica thins 

 the overlying Hudson river shales, as he calls them, increase in 

 thickness. As the two together have a. fairly constant thickness, 

 the writer is of the opinion that they together form the Eden. 

 Recently Foerste has given the name Fulton to the clay layers 

 of a few feet thickness at the base of the Eden. As the Trlartli- 

 rus becki, the most characteristic fossil of .the New York Utica 

 is found in thesp few feet, and rarely, if at all, higher, it is held 

 by some that these few feet alone represent the New York Utica. 

 WINCHESTER AND POINT PLEASANT. The name Winchester 

 was given by Campbell in the Richmond folio of the Geologic 

 Atlas of the United States to the strata extending from the 

 Flanagan chert to the Garrard sandstone. The Flanagan chert 

 appears to be only a local phase of the upper beds of the Lex- 

 ington. Field work by members of the Kentucky Geological 

 Survey during the past season has shown that the Garrard sand- 

 stone is a local sandy phase of the upper Eden. The upper part 

 of Campbell's Winchester proves to be Eden. The lower part, 

 traced from Winchester north proved to be the same as the Point 

 Pleasant beds, named by Orton from Point Pleasant, Ohio. 8 

 Orton included them in the Cincinnati group, but excludes them 

 from the Cincinnati beds proper, which he makes begin at low 

 water mark of the Ohio river at Cincinnati. In volume 6 of the 

 Ohio reports Orton definitely calls the Point Pleasant Trenton, 

 but still does not recognize the River Quarry beds at Covington, 



7 Report of Ohio Geological Sursey, G, pp. 7-9, 1888. 

 8 Report of Ohio Geological Survey, 1, p. 370, 1873. 



