REPORT OF THE STATE PALEONTOLOGIST 1902 1067 



the middle beds; the width of the sinus at the anterior margin 

 is 10 mm, and there are 13 or 14 plications on each side of the 

 sinus. 



8 S. concinnus Hall. Small specimens like those found 

 in the Becraft beds are not uncommon in the middle beds on 

 the quarry road. 



9 S. cyclopterus Hall. A large specimen was obtained 

 from the middle beds on the quarry road. 



10 S. sp. 



11 S. perlamellosus Hall. Middle beds; rare. 



12 Rhynchospira formosa Hall. 1 specimen. 



13 Eatonia peculiaris Conrad. Middle beds ; rare. 



14 Meristella typus Hall. A single specimen show- 

 ing form and concave or flattened cardinal margins of this spe- 

 cies, was found in the upper beds. According to Schuchert this 

 species occurs only in the Manlius of Cumberland Md. 



15 M. cf. p r i n c e p s Hall. Middle beds. 



16 M. sp. 



17 Rensselaeria sp. 



18 Platyceras cf. trilobatum Hall. Middle 

 beds. 



A consideration of this list shows that these beds have a 

 transitional character from the Becraft to the Oriskany of 

 Becraft mountain. This is shown by the occurrence of charac- 

 teristic Oriskany and Becraft species side by side as well as by 

 the intermediate character of some species. 



Oriskany species are Cladopora styphelia, O r - 

 thothetes becraft en sis, Strop heodonta 



magnifica and Eatonia peculiaris. Affinities 

 with the Becraft limestone are shown by Spirifer con- 

 cinnus and with that and the lower beds by S. cyclop- 

 terus, S. perlamellosus, Rhynchotrema for- 

 mosa, etc. 



A more extended collection would probably show more tran- 

 sitional forms in the lower and middle, and other Oriskany 

 species in the upper beds. 



