50 
Aug. F. Foerste 
Orthorhynchula linneyi has not been traced northward beyond 
Madison county. From Madison county southward, as far as 
the middle of Lincoln county, it occupies a definite horizon, a 
short distance below the base of the Tate layer. Usually the 
highest level for Strophomena maysvillensis is below the Ortho- 
rhynchula horizon. However, at Givens Station, 3 miles east of 
Shelby City, and at the bridge 1 mile west of Lincoln county, Ortho- 
rhynchula occurs, associated with Strophomena maysvillensis at the 
highest levels occupied by the latter. 
Along the railroad from Consolation to Benson, in the eastern 
part of Shelby county, the following section is exposed: 
Depot at Consolation. 
Interval 18 ft. 
Platystrophia ponderosa not common, rare below 12 ft. 6 in. 
StropJionmia planoconvexa at top and bottom 4 ft. 
Interval 4 ft. 
Strophomena plarioconvexa, Stropfw7uena sinuata and Plectorthis 
neglecta 4 ft. 
Limestone with Strophomena plaoiocojivexa 7 ft. 
Lowest Platystrojjhia 2 ^onderosa. 
Clay 2 ft. 
Abundantly fossiliferons shelly limestone 18 ft. 
Stro27home7ia planoconvexa at top and bottom 2 ft. 
Interval 6 ft. 
Strophomena maysvillensis common in rough limestone. 
Dalmanella not common 8 ft. 
Strophomena 7naysvillensis not rare 3 ft. 
Base of Fairmoimt. 
Limestone with Dalma7iella multisecta and Stropho77iena 7naysvillen- 
sis at top. Lowest horizon for Strophomena maysvillensis occurs 
at base of this section 29 ft. 
The occurrence of Strophomena maysvillensis in the Mount Hope, 
as well as in the Fairmoimt, may be noted also along the pike 
from Shelby ville to Clay City. Northward, the number of speci- 
mens in the Mount Hope member diminishes rapidly. The fol- 
lowing section is exposed near Port Loyal, over 5 miles east of 
Turner Station, in the northeastern corner of Henry county. 
Level of streets at Port Royal. 
Interval with Platystrophia ponderosa at the base 40 ft. 
Platystrophia ])07iderosa abundant, Mo7iticidipora 7nolesta at the 
top 10 ft. 
Interval 23 ft. 
