Prossee — Hamilton and Chemung Sekees. 



XLII E x . Along the bank of the Chenango river, about two and one- 

 half miles below Chenango Forks and opposite Kattle Hill, are quite fossil- 

 iferous shales. There is one layer that is quite calcareous, forming a "fire 

 stone," which contained these species : 



1. Spirifer mesacostalis, Hall (?). 



2. Productella speciosa, Hall (Ithaca variety). 



3. Hhynchonella (Pugnax) pugrius (Martin), Dav. 



4. IAorhynclms globuUformis (Van.), Hall. 



5. Cyrtitia Hamiltonensis, Hall. 



6. Grama (Cranielld) HamiMonicB, Hall (?). 

 The shales contained the succeeding : 



1. Orthis (Schizophoria) impressa, Hall. 



2. Liorhynchus globuUformis, (Van.), Hall. 



3. Spirifer mesacostalis, Hall (?). 



4. Stropheodonta demissa (Con.), Hall. 



5. Rhynchonella (Camarotozchid) Stevensi, Hall. 



6. Productella speciosa, Hall. 



7. Palwoneilo constricta (Con.), Hall (?). 



8. Lyriopecten tricostatus (Van.), Hall. 



9. Microdon {Cypricardelld) belli striat us, Con. (?). 

 10. Sphenotus, sp. 



Liorliynchus globuUformis (Van.), Hall, is the most abundant species in 

 both of the preceding lists. 



XLII E*. Two miles below Chenango Forks is a long cut on the 

 Delaware, Lackawanna and Western railroad, furnishing a good locality to 

 study the Liorhynchus globuUformis fauna. The rocks are principally 

 sandstones and shales which, on weathering, are of an olive color. Above the 

 railroad cut is the highway along the steep eastern face of Kattle Hill, where 

 the rocks are not very fossiliferous except in thin layers. These layers are 

 somewhat calcareous, often at the bottom of a four to six inch sandstone, and 

 contain a mass of fossils, principally Liorhynchus globuUformis (Van.), Hall, 

 mixed with a few other species. This Liorhynchus, under the name of 

 At i'y pa globuUformis, was figured by Vanuxem, who said: "This cast is 

 given, because it exists in myriads as such in this group [the Chemung], 

 numerous localities abounding in it." 1 Professor H. 8. Williams has termed 

 this horizon "the Liorhynchus globuUformis stage" of the faunas succeeding 

 the Oneonta formation in the Chenango valley. 2 



' Geolooy of New York, Part III., p. 182 See fig. 2 of No. 49 on same page. 



2 Proceedings American Association Advancement of Science, Vol. XXXIV., 1886, p. 226. 



