MARCELLUS LIMESTONES AND THEIR FAUNAS 123 



The amount of shale overlying these liineistones is not shown 

 in these sections. Holes dug for telephone poles along the road 

 to Springfield show black shales at elevations of 40 to 60 feet 

 above the highest outcrop already noted; and near the top of a 

 hill to the east of a road just above the first highw^ay crosising, 

 60 to 80 feet still higher, are dark gray, weathered, fissile, barren 

 shales. These occurrences indicate at least 100 feet of shale 

 above the recorded section. The repetition of Agoniatites 

 expansus in beds separated by an interval of about 90 feet 

 suggests the probability of a displacement along the covered 

 interval of 67 feet. This point is not yet satisfactorily deter- 

 mined. Assuming its presence .we find the Agoniatites fauna at 

 something over 40 feet above the summit of the Onondaga. 



If, however, no such displacement exists, the fauna with 

 Agoniatites reappears after an absence from the sediments repre- 

 sented by a deposition of about 90 feet of shales and it thus rises 

 to an elevation of 130 feet abm^e the Onondiaga linie«stone. 



Schoharie county 



Most of the Agoniatite limestone specimens from Schoharie 

 county in the state collections were obtained by the late John 

 Grebhard jr, probably from localities on the Lamoreaux farm, 1 

 mile southwest of Schoharie village, and the Burton farm 1 mile 

 still farther south. At these places the limestone lies just below 

 the surface and has been taken out for the construction of farai 

 walls, but no exposure is afforded which defines the position of 

 the beds in the rock section. 



On Stony creek, east of Schoharie village, an outcrop of 

 limestone is shown about 50 yards above the bridge near the 

 confluence of the two branches. Here are about 2-0 inches of 

 dark gray, impure limestone with Orthoceras marcel- 

 lens e and other fossils which usually accompany Agonia- 

 tites expansus, though that species has not been 

 observed. For 16 feet above this the section is covered, then 

 follows a continuous exposure of Marcellus shale for nearly a 



