160 



Report of the State Geologist. 



9. Leptodeximt cf. sociale, Hall. (rr) 



The specimens do not show the strong concentric markings of 

 this species, but fine striae as in L. Rogersi, Hall, to which species 

 perhaps they should be referred. The form is similar to that of 

 the small specimens of L. Rogersi or L. sociale. 

 XLII B h . By the roadside at the top of the hill above the railroad 

 are thin, very much weathered sandstones that contain fossils. The following 

 were collected : 



1. Spirifer mesastrialis, Hall. 



2. Spirifer disjunctus, Sowerby. 



3. (?) Aviculopecten, sp. , 



4. Orinoid segments. 



This is the first place in the Chenango valley where Spi/rifer disjunctus 

 was found, and the occurrence of this characteristic Chemung fossil conclu- 

 sively proves that the rocks near the top of the high hill south of Port Crane 

 are in the Chemung formation. 



i? 6 . On top of the high hill along the second road south of the river, 

 and about two miles south of Port Crane, are thin sandstones in which 

 Spwifer mesastrialis, Hall, is abundant. There is only a slight exposure by 

 the roadside, but the following species were collected : 



1. Spirifer mesastrialis, Hall. (a) 



2. Mtjtilarca carinata, Hall. (rr) 



3. Palwoneilo, sp. (rr) 



An elongated specimen which is narrower than any of the 

 figured forms. 



4. (?) SeJiisodiis, sp. (rr) 



5. Crinoid segments. (a) 



This fauna is about 590 feet above the river level or with an approximate 

 altitude of 1,440 feet A. T., and it is in the highest rocks found in the vicinity 

 of Port Crane. 



XLIII A. Two miles east of Port Crane is Osborne Hollow, in the 

 western part of Colesville township. The railroad station is 1,115 feet A. T. 

 The country about this place is gently rolling, with few extensive rock 

 exposures. The species in the following list were obtained from an outcrop 

 along the brook near the village: 



1. Modiomorpha, sp. 



2. Leptodesma, sp. 



.''). Microdon ((['/ja-icardella) bettistriaPus, Con., var. 



