Maryland Geological Survey 481 



'V'^ m -t- c C 



Parkhead Sandstone Member 'is.So'S 3 5^1 



Fissile green shale and bands of interbedded sandstone. 

 Minor folding occurs in this unit 935 74 2049 



Same as above with minor folding N. 25° E. 42° E 825 201 1975 



Green shale and interbedded sandstone. At top occur 

 Camarotachia congregata var. parkheadensis abundant, 

 Spirifer (Delthyris) mesacostalis. Tropidoleptus carinatus, 

 Cyclonemina multistriata, Loxo-mena ? glahrum. N. 25° 

 E. 45° E 525 7 1774 



Fissile green shale and bands of interbedded green 

 sandstone. A fossiliferous layer, 6 inches thick at top, con- 

 tains Camarotachia congregata var. parkheadensis abun- 

 dant, Spirifer {Delthyris) mesacostalis common 515 20 1767 



Fissile green shale and bands of green sandstone. At 

 the top in a band of green sandstone were found Cama- 

 rotachia congregata var. parkheadensis abundant, Spirifer 

 (Delthyris) mesacostalis, Tropidoleptus carinatus abun- 

 dant, Coleolus tenuicinctus, Cyclonemina multistriata. N. 

 21° E. 42° E 485 33 1747 



Fissile green shale with bands of hard green sandstone. 

 Near top of this unit a conglomerate occurs about 6 inches 

 in thickness. N. 25° E. 55° E. At top occur Camarotachia 

 congregata var. parkheadensis, Tropidoleptus carinatus, Cy- 

 clonemina multistriata in tough green shale. At the bot- 

 tom is a conglomerate containing Camarotachia congregata 

 var. parkheadensis abundant 435 164 1714 



Woodmont Shale Member 



BEDS CONTAINING ITHACA FAUNA 



Fissile green shale with bands of green sandstone. N. 

 13° E. 42° E 235 104 1556 



Green fissile shale with bands of sandstone. N. 13° E. 

 40° E. At the top occur Crytina hamiltonensis abundant, 

 Liorhynchus globuUforme, Orhiculoidea cf. media ? , Pro- 

 ductella speciosa, Pugnax pugnus var. altus, Spirifer mucro- 

 natus var. posterns, Stropheodonta demissa, Ectenodesma 

 Mrostratum, Pterinea chemungensis 75 46 1446 



Base of section 1400 



Remainder of section is concealed. 



No reduction in estimates of thickness is made for minor folding in the 

 units in upper part of Parkhead member in above section, hence their thick- 

 ness is somewhat too large. 



31 



