124 



Report of the State Geologist. 



eleven feet thick, in which Hamilton fossils are common, and from which the 

 following species were obtained : 



1. 



Si/ifitfi' i n ii c )■< ) in it ii s 1 Clon ^ Rill 



\ ) 







7/vy >'i ih ih-pt II s ril I'l IHltUS ( Coll.), Hall. 



(rr) 

 \ > * i 



3. 



( 'hoiit-tis xcifiilti. Hall. 



<c) 



4. 



Aihyrls sj>i rift roiiL s (Eaton), Hall (?). 



(rr) 





In n >erf ectl \' i d'e^Tveil internal miitrfssioii 



Alii 1 'V 1 IV V Li » l.'l OV J. » VVl J. 11 \J\j 1 11 CI 1 1 I 11 I .'1 li'nl' '11. 





5. 



Grammifsia {Splteiiom //a) cvyieata, Hall. 



(rr) 



6. 



Jliewdon, ( OypriccvrdeUd) tenuistriatuz, Hall. 



(rr) 



i . 



TeUmopsis subenia/rginata (Con.), Hall. 



(rr) 



8. 



Actinopteria decussata, Hall. 



(rr) 



9. 



Ortliori-n/s, sp. (poorly preserved fragment). 



(rr) 



10. 



Dalmanites (Cryphceus) Bootlii (Green), Hall. 



(rr) 



The Hamilton arenaceous shales, with plenty of fossils, extend at least 

 sixty feet higher than the quarry, where an outcrop was found which is 

 barometrically 175 feet above the Delaware, Lackawanna and Western rail- 

 road station at Sherburne, or approximately 1,220 feet A. T. 



XIX A 2 . Above the Hamilton outcrop just mentioned the rocks are 

 covered for about sixty-three feet, when another old quarry is reached, in 

 which there are thin, bluish sandstones alternating with thin, bluish, fissile, 

 argillaceous shales, and this outcrop may be followed for some distance along 

 the side of the hill to the north. No fossils were found except fucoidal mark- 

 ings similar to Fueoides graphica, Van. The quarry is barometrically 238 feet 

 above the Delaware, Lackawanna and Western railroad station at Sherburne. 

 The rocks belong to the Sherburne formation, and the upper portion of this 

 hill has been so indicated on the accompanying geologic map. 



XIX F x . In the northern part of Sherburne township, about two and 

 one-half miles northeast of the village, on the Powers farm, two excavations 

 were made some years ago in search of coal, and the place is known locally as 

 the "coal mine.'" The rocks are mostly thin, fissile, black, argillaceous shales, 

 containing abundant Hamilton fossils. Some of the layers are composed very 

 largely of SpirifVr m "rronatus (Con.), Bill, and Tropidolept us niriiuttus (Con.), 

 Hall. The most abundant species are Spirifer nuicronatus (Con.), Bill., 

 Tropidoleptus ca/rinatais (Con.), Hall, and Amboccdia u/mbonata (Con.), Hall, 

 ami the rocks belong in the upper part of the Hamilton formation, probably 

 the zone termed in w estern New York, the Moscow shale. Barometrically the 

 locality is 26G feet above the Sherburne railroad station, or approximately 

 1,308 feet A. T. 



