Prosser — Hamilton and Chemung Series. 



207 



These shales extend up the hillside 185 feet higher than the level of the 

 railroad. Near the foot of the hill they are quite fossiliferous, the following 

 species having been obtained : 



1. Spirifer Tullius, Hall. 



2. Miorodon {CyprieardeUa) bellistriata (Con.), Hall. 



3. Modiella pygmcea (Con.), Hall. 



4. TropidolepUbs ca/rinatus (Con.), Hall. 



5. NvmiMtes oblongatus, Con., var. 



6. Phacops rana (Green), Hall. 



7. Orikoceras ccelamm, Hall. 



8. Khodea pmnata, Dn. 



9. Spirifer mucronatus (Con.), Bill. 



10. Grammysia subarcuata, Hall. 



1 1. Chonetes coronata, Con. 



12. Pakeoneilo emargmata (Con.), Hall (?). 



13. Nwnda corbuliformis, Hall (?). 



At nearly the top of the Hamilton shales, by the side of the highway, 



the following species were collected: 



1. Vitulina pustulosa, Hall. (c) 



2. Tropidoleptus carinatus (Con.), Hall. (c) 



3. Spirifer Tullms, Hall. (r) 



4. Ghonetes coronata (Con.), Hall. (rr) 



5. Mierodon (CypricardeUd) tenuist/riatus, Hall. (rr) 



XXII I~. Above the Hamilton are 175 feet of thin sandstones alternat- 

 ing with greenish argillaceous shales. These rocks belong in the Sherburne 

 formation. No fossils were found. 



XXII I 3 . Just above the even shales of I 2 is an irregular layer that 

 contains clay pebbles of various forms and some fossils, the species mentioned 

 below having been obtained : 



1. Spirifer TulUus, Hall. (r) 



2. Tropidohph/8 carinatus (Con.), Hall. 



3. Led a diverm, Hall. (r) 



4. Mierodon (Cypriea rdelhi) ten ui.striatu*, Hall. (rr) 



5. Paheoneilo constricta (Con.), Hall (?). (rr) 



6. Modiomorpha cf. subalata (Con.), Hall, var. 



Oheni'imgensis, Hall. (rr) 



A larger and longer specimen than any of the figures of the 

 above species. 



