502 The Upper Devoniak Deposits of Marylaxd 



XT. Section Two Miles Xorth of the mouth of Town Creek^ 

 An almost uninterrupted exposure of the lower 2000 feet of the Jen- 

 nings occurs on Town Creek two miles in an air line north of its mouth 

 where it makes a long swing to the east. The section is seen on the south 

 side of the creek beginning at the Eomney-Jennings contact and extending 

 eastward 2767 feet. 



.2^ go o§^ Si 



Jennings Formation '° " „ "".S-l 



Chemung Sandstone Member "S-ico % •S'SS 



Q C -*3 5 P aj o 



Stream N 65° W. i=|g-g 



M-2 5,-Z.a 



Green hackly shale and interbedded sandstone. Dip 

 53° E 2767 292.8 2241 



Parkhead Sandstone Member 



Shale breaking irregularly and concretionary sandstone. 

 At top occur Tropidoleptus carinatus abundant, Spirifer 

 (Delthyris) mesacostalis, 8. mucronatus var. posterus ?, 

 Coleolus tenuicinctus, Cyclonemina multistriata, Beller- 

 phon clarki, Loxonema ? glabrum 2407 31.7 1949 



Fissile green shale and beds of sandstone. At top oc- 

 cur Camarotcechia congregata var. parkheadensis, Spirifer 

 (Delthyris) mesacostalis. Tropidoleptus carinatus common. 

 Dip 65° E 2372 75.1 1917 ^ 



Concealed. Near the top of this unit were found Cyrtina 

 hamiltonensis, Spirifer mucronatus var. posterus ?, Tro- 

 pidoleptus carinatus abundant, Coleolus tenuicinctus, Loxo- 

 nema ? glabrum common 2289 21.8 1842 



Green sandstone with partings of shale breaking irregu- 

 larly 2266 43.7 1820 



Ravine 2220 



Green shale breaking irregularly and sandstone in about 



equal amounts 2220 40.8 1776 



Green shale breaking irregularly 2177 22.3 1736 



Arenaceous shale breaking irregularly, and sandstone, 

 containing at top Camarotwchia congregata var. with deeper 

 sinus suggesting contracta abundant, Spirifer marcyi var. 

 sitperstes, 8. (Delthyris) ynesacostalis, 8. mesastrialis, 

 Tropidoleptus carinatus abundant, Spirorbis sp., Cyclone- 

 mina multistriata, Bellerphon clarki, Loxonema ? glabrum. 

 At 214G horizontally (1716 vertically) occur Camarotwchia 

 congregata var. parkheadensis, Cypricardella bellistriata, C. 

 tenuistriata, Nucula corbitliformis abundant, Holopea ? 

 parva 2154 9.9 1723 



^ Measured by tape. 



