154 



Report of the State Geologist. 



4. Lyriopecten tricostatus (Van.), Hall (?). (rr) 



The plications are of three sizes, giving the shell the surface 

 ornamentation of this species. 



5. PalcBoneilo, sp. (r) 



Very poorly preserved. 

 6 Aetinopteria cf. Theta, Hall. (rr) 



Imperfectly preserved, but like figure 19, plate 84 (Palaeontology 

 of New York, loc. cit.) of this species. 

 This hill forms the divide between the Chenango and Tioughnioga livers 

 above their junction, and its top is about two hundred and sixty-five feet 

 above the railroad. 



Fenton and Chenango. 



Greene is the southwestern township of Chenango county. To the south 

 is Fenton township, Broome county, which is on the eastern side of the 

 Chenango river, and on the western side of the river is Chenango township. 



In the southern part of Fenton township is the small village of Port 

 Crane, formerly a port on the Chenango canal, but now reached by the 

 Susquehanna division of the Delaware and Hudson railroad, the station of 

 which is on the hill side, considerably higher than the village. The geology 

 of this region was a puzzle to Vanuxem, on account of the presence here of 

 Hamilton species. In describing the Chemung group, Vanuxem referred 

 to this difficulty and said : " These rocks appear [at Port Crane], having 

 similar fossils to those of the lower rocks which are quarried around the 

 village of Norwich, and those exposed in the sides of the brook to the west 

 of the village of Oneonta. There are three fossils at these localities also, 

 which are the same with those of the Hamilton group, the Posidonia lirata 

 \Paravycla* lirata (Con.), Hall], Strophomena carinata \Tropidoleptux carl- 

 natus (Con.), Hall], and Atrypa plebeia [this is not recognized] ; showing 

 that localities existed which favored the continuance of certain species long 

 after their total destruction in others ; a subject which requires thorough 

 investigation, and w ithout which the value of fossils as a character will not 

 be as deservedly esteemed as they should." 1 Also, in describing the geology 

 of Broome county, Vanuxem mentioned the same difficult)' and wrote: 

 "There are several openings in the hillside at Port Crane, not far from the 

 level of the canal, where some of the same fossils which exist at the quarries 

 near Norwich, and aear the canal also, are found. These fossils belong to 



1 Geology of Now York, Part III., |>. 180. 



