58 



NEW YORK STATE MUSEUM 



advisable to show in tabular form their local occurrence and their 

 distribution in the Rochester shale and Clinton group. 1 



Rusophycus bilobatus ( Vanuxem) .... 



Retepora angulata Hall 



Pholidops squamiformis {Hall) 



Leptaena rhomboidalis Wilckens 



Plectambonites transversalis {Dalman) 



Atrypa reticularis Linn'e 



Spirifer radiatus Sowerby 



S. niagarensis {Conrad) 



Avicula emacerata Conrad 



Orthonota curta Hall 



Bellerophon (species undetermined).. . 

 Conularia (species undetermined) .... 



Orthoceras cancellatum Hall 



O. annulatum Sowerby 



O. (species undetermined) 



Lichas boltoni {Bigsby) 



Calymmene (species undetermined) . . . 



Dalmanites limulurus '{Green) 



Beyrichia symmetrica (?) Hall 



Brewer- 

 ton 



X 



Phoeni 



Two and 

 one-half. 



miles 



northeast 



of Three 



River 



Point 



X 



Roches- 

 ter 



shale 



Clinton 

 group 



X 



Besides the Niagaran forms listed above, a few fossils have been 

 obtained from a dolomite believed to be the eastern extension of the 

 Lockport Fragmentary brachiopod shells have been found in 

 blocks of this material which were removed from the bed of the 

 Oneida river at Oak Orchard. About 4 miles away at a quarry 

 just south of Three River Point (Baldwinsville quadrangle) a sim- 

 ilar rock, in addition to obscure fragments, carries a Leperditia- 

 like ostracod and a Spirifer apparently of the crispus type. 



THE SPARSE FAUNA OF THE SAUNA BEDS 



Of the lithologic units included under this heading, only one, the 

 Camillus, has furnished fossils in the Syracuse area. The eurypterid- 

 bearing Pittsford shale, which constitutes the base of the group in 

 western New York, has here remained unrecognized while the over- 



1 For the horizons and localities of Clinton group and Rochester (Niagara) 

 shale species, see Hall, Palaeontology of New York, v. 2. For a list of the 

 common Rochester shale species, see Hartnagel, N. Y. State Mus. Bui. 114, 

 P. 19. 



