32 NEW YORK STATE MUSEUM - | 



There can be no doubt of the Canajoharie age of the rock of this 

 outcrop, and yet it is only two miles due north of the " Frankfort " 

 outcrops of Rexford Flats, leaving but a narrow strip for a possible I 

 belt of intervening Utica shale ; and considering the very slight south- 

 west dip of the rocks also but little room for any thickness of the 

 Utica shale. 



Fine exposures of these Canajoharie shales were observed about 

 Ballston Spa, especially along Kayaderosseras creek. Here occur: 



Dicranograptus nicholsoni . (rr) 



Glossograptus quadrimucronatus (in some beds large and 



typical) (r) 



Climacograptus spiniferus (cc) 



Lasiograptus eucharis (r) 



A similar faunule was observed on the Glowegee, northwest of 

 Ballston Spa, while the single outcrop at Saratoga (Carlsbad 

 Spring) contains : 



Climacograptus spiniferus 

 C. mohawkensis 

 Lasiograptus eucharis 

 Leptobolus insignis 



An excellent outcrop of the Canajoharie beds between Saratoga 

 and Glens Falls is that at the falls of the Snook kill at Gansevoort, 

 where occur: 



Glossograptus quadrimucronatus mut. cornutus 

 Diplograptus mohawkensis 

 Lasiograptus eucharis 



Very important exposures were found above and below Glens 

 Falls. Those above are near the feeder dam, one to two miles 

 southwest of the city and contain : 



Corynoides calicularis 

 Diplograptus amplexicaulis 

 Glossograptus quadrimucronatus 

 Leptobolus insignis 

 Pontobdellopsis cometa 

 Orthoceras nov. cf. amplicameratum 

 Triarthrus becki 



Between Glens Falls and Hudson Falls (formerly Sandy Hill) 

 the contact between these shales and the basal Trenton limestone 

 can be observed — or rather could be observed — the feeder dam 

 between the paper mills and the mill races on both sides having 



