51G The Upper Devonian Deposits of Maryland 



.2 i 9 o o > ^ 



•3-° S .5 = 



iil^ I 111 



Road N. 55° W. Altitude 821. Map altitude SCO Silo's i 5^1 



stone bridge 2220 1092 



Concealed. Dip 30° E 220 735 1092 



Black and green fissile shale. Buchiola speciosa fauna. 

 Dip 30° E. At 760 occurs Cyclonema sp. resembles con- 

 cinnum 760 161 357 



Road N. 79° W. Altitude 770 



Town Creek 450 196 



Concealed. Dip 30° E. Genesee shale in interval 450 196 196 



Romney-Jennings contact. 450 feet west of center of 

 bridge over Town Creek 



XIX. Section near Round, West Virginia 

 The Jennings occupies a syncline west of Warrior Mountain, which 

 deepens south of the Potomac Kiver. The lower Chemung conglomerate is 

 exposed on top of a hill west of the home of Mr. J. Will Smith, the locality 

 being on the county line between Mineral and Hampshire counties, 2% 

 miles in an airline southwest of Bound, West Virginia. The section is of 

 interest because of the abundant development of the recurrent Tropido- 

 leptus carinatus fauna in the lower Chemung conglomerate. The follow- 

 ing species were collected in these beds: Amhocoslia imihonata abundant, 

 Camarotcechia congregata var. parhheadensis, Bhipidomella vannxemi, 

 Spirifer marcyi var. superstes, Tropidoleptus carinatus abundant. The 

 underlying rocks are exposed in a ravine that descends in a northeasterly 

 direction from the home of Mr. Smith, along an old road leading to Green 

 Spring. The lower part of the Chemung consists largely of strata having 

 a deep-red color, below which the Parkhead member is seen in the ravine. 



XX. Section on Williams Road East of Cumberland ' 

 The lower Jennings is admirably exposed on the Williams Eoad west of 

 Mt. Hermon Church, 3^4 miles east of Cumberland. The section begins 

 at the Komney-Jennings contact and extends 1908 feet to the west. The 

 measurements were made on the old road and do not apply to the new 

 road constructed in 1911, which follows another course. 



'■ Measured by tape. 



