Maryland Geological Sirvey 



159 



Horizontal Vertical Total 



Direction N. 83° W. 'i^*-- ^'^'ftr^thtcknts 



ive nodular limestone N. 40° E. 20° E. Eight 

 feet below top occur Cladopora rectilincata, Favosites 

 helderbergiw var. pnrcedens, crlnoids, bryozoa, Atrypa 

 reticularis (r), Dalmanella concinna (r), Meristella 

 sp., Stenochisma formosa (r), Calymene camerata. 

 Twenty-three feet below top occur Atrypa reticularis 

 (a) , Chonetes jerseyensis, Spirifer modestus (r). Near 

 bottom is found Camarotoechia litchfieldensis 437.0 37.0 



Direction S. 78° W. 



Massive nodularlimestone. N. 40° E. 23° E 308.0 12.3 



Gray-blue limestone, not nodular 257.0 1.0 



Very massive nodular limestone. N. 40° E. 38° E 27.0 



Bluish-gray nodular limestone, thin-bedded at top 



and partly concealed at bottom 22.0 



Direction S. 70° W. 

 Concealed 50.0 15.0 



Thickness of Keyser member exposed 172.9 



114.3 



77.3 

 65.0 

 64.0 



37.0 



15.0 



ToxoLowAY Formation 



Thin-bedded argillaceous limestone visible in bed of 

 creek when water is very low. 



XIV. Section 1% Miles Northeast of Flintstone 

 About IJ miles northeast of Flintstone, Iron Ore Ridge is cut by a 

 small creek in which occasional exposures of the Keyser member are to 

 be seen. The Gypidula coeymanensis var. prognostica zone is exposed in 

 the bottom of the creek. Thirty feet below this CamarotoecJiia litch- 

 fieldensis and Spirifer octocostatus were obtained, and at the bottom of the 

 exposure along the south side of the hill Spirifer vcunu-xemi, S. modestus, 

 Stroplieodonta liparHta, and Leperditia cf. aUa were collected. The 

 strata dip here at about 28° southeast and only a few exposures occur 

 where the dip can be taken, so it is not certain that the correct strati- 

 graphic thickness is given. 



The section begins at tlie Gypidula coeymanensis var. prognostica zone 

 exposed in tlie creek above which the section is largely concealed. 



