180 The Lower Devoxi.vn- Deposits of Maryland 



Hindia sphceroidalis , Streptelasina strictum, Favosites conicus, Stria- 

 topora bella, Aulopora schuclieiii were found in the New Scotland in the 

 woods south of the cut. 



In the North Mountain at the eastern end of the cut on the Baltimore 

 and Ohio Eailroad at the watchman's hut is a limited but good exposure of 

 the Becraft member of the Helderberg formation. About 15 feet are ex- 

 posed. To the west of this section the Eomney shale is seen. The limestone 

 is light gray and the siliceous fossils weather out and are found in the dirt 

 under the cliff. The following species were secured here: Favosites 

 conicus, Spirifer concinnus (r), S. cijclopterus (r), S. perlamellosus (rr), 

 Nucleospira elegans (rr), N. ventricosa (rr), Meristella a/rcuata (rr), 

 Eatonia peculicuris (c), Uncinulus aJbruptus (rr), U. vellicatus {T),Rhipi- 

 domella assimilis (aa), Edriocrinus pocilliformis (rr), Favosites conicus 

 (a). 



Sections of Oriskany Formation 



The following sections ' show the characteristic features of the Oris- 

 kany. They are considered in the order of their geographic occurrence 

 from the west to the east. 



I. Section at Monster Rock 

 At Monster Eock opposite Keyser is an overturned fold exposed in the 

 cut of the West Virginia Central Eailroad. The first bed of the section 

 lies to the west, with the second and third above it in regular order. This 

 condition, however, is soon altered for the older rocks rapidly bend over to 

 the eastward and resume their normal position. The thickness of the 

 Oriskany here appears low in comparison with that at 21st Bridge where 

 the opportunity of measuring it is better. The disturbance at the Oris- 

 kany-Eomney contact may account for this. The section is as follows 

 accordino- to the measurements of E. B. Eowe : 



ROMNEY FOEMATION 



Onondaga Member 

 Fine black shale. Oriskany-Romney contact at base. 



' Contributed by R. B. Rowe, Charles Schuchert, and C. K. Swartz. 



Vertical Total 



thickness vertical 



feet thicknes; 



