32 KENTUCKY GEOLOGICAL SURVEY. 



Subdivisions of the Maysville. 



MOUNT HOPE BEDS. These appear to be more fossiliferous in 

 Kentucky than in Ohio. At nearly all Kentcuky localities on 

 the flanks of the anticline the Strophomena maysvlllensis 

 Foerste appears at or near the base of the Mount Hope and 

 ranges upward into the Fairmount, At Newport and Covington 

 the upper Eden fauna persists, in part for a few feet> but soon 

 gives way to the new fauna, though a few of the upper Eden 

 forms survive somewhat longer. Among these survivors are A m- 

 plexapora scptoxa, Pcronopora vera, Constellarla prominens,, and 

 Oallopora nodulosa. A species of Batostoma described later in 

 this paper, rare at Cincinnati, is abundant at Maysville. Sev- 

 eral closely allied species of Heterotrypa are among the new- 

 comers in the fauna. Tn the northern area a small species of 

 Platystroplila makes its appearance. No Platystrcphias have 

 been noted in the Eden. Other bryozoa are Callopora siibplana, 

 Callopora dalel and Constellarla plana. 



The only exposures from which fossils were collected were in 

 the Maysville section and in railroad cuts between Million and 

 Richmond in Madison county. 



FAIRMOUNT BEDS. These beds are very fossiliferous in Ken- 

 ton and Campbell counties, a greater variety of fossils having 

 been found in them than in any other subdivision of the Cincin- 

 natian. Among the commoner forms, though these are apt to be 

 gregarious, may be mentioned DalmancUa bellula (James), 

 Dalmanella meeki (Miller), Platystroplila crassa (James), 

 Plectorthis? ella (Hall), Plectorthls pllcatella (Hall), Plec- 

 torthis triplicatella (Hall), Rafinesquina squamula (James), 

 Shizocrania filosa Hall and Whitfield, Strophomena piano* 

 convexa Hall (in a limited horizon at the base), and Cyclo- 

 nema several species. Among the common bryozoa are Hetero- 

 trypa several species, Constellarla florida Ulrich, Amplexopora 

 dlscoldea (Nicholson), r Atactoporella multigranosa (Ulrich), 



