Report of the State Geologist. 283 



of coarse arenaceous shales much irou-stained after weathering. 

 This ledge is called 504 A, and in lithologic character resembles 



503 E, although lower in actual elevation. The lower part of the 

 exposure contains numerous fossils, the fauna being given below : 



Spirifer mucronatu^, Conrad. 



Tropidoleptus carinaUi^^ Conrad. 



Paracyclas lirata, Conrad. 



Mhynchonella congrefjata, Conrad (?). 



Chonetea. 



SpArifer. Fragment of a large one. 



Orbiculoidea (?). 



3fodiomorpha. 



Several specimens belonging to the AvicididcB, but so imper- 

 fectly preserved that their identification is difiicult. In a brook not 

 far from 504 A, but considerably lower, is a cliff of 15', 504 B, just 

 below a sawmill. The rocks are coarse, blue arenaceous shales alternat- 

 ing with thin, blue sandstones which weather to a brown. No fossils 

 were found, and the general appearance of this outcrop is similar to 

 those of stations 503 B and C, up the lower two-thirds of the long 

 Pittsfield hill. 



One mile east of Morris village, near the highway leading from 

 Morris to West Laurens, is 504 C. This exposure is three miles from 



504 B, in a small stream flowing into Butternut creek from the south- 

 east, and not very far up the hill. The lower layers in the creek are 

 blue, arenaceous shales wdth a 14" sandstone for the top. A little 

 farther up the creek a quaiTy has been opened, and 5' out of the 10' 

 exposed is quarry stone. The good stone is a blue sandstone which 

 weathers to a brown and is used for building stone. A single imperfect 

 specimen of a large Spirifer was found in the sandstone. 



Up the hill from 504 C, the soil covers the rocks deeply, affording 

 but small exposures. Two miles from 504 C and about one-half mile 

 west of West Laurens, in the creek, is a small outcrop of blue 

 arenaceous shale and thin sandstone called station 505 A. No fossils 

 were found. 



One half-mile southwest of West Laurens station 505 B, in a little 

 run is an exposure of argillaceous shale somewhat regularly bedded, 

 which weathers to a greenish tint. A few fossils were found. Several 

 imperfect specimens of a small Grammysia and a single PalcBoneilo, 

 which is either P. constricta, Conrad, or P. maxima, Conrad. This is 

 the last exposure of fossiliferous shales noticed before the red and gray 

 shales and sandstones of the Oneonta group are reached. 



