Report of tee State Geologist. 275 



The complete fauna of 501 A^ and A^ is: 



Tropidoleptus oarinatus, Conrad. 



Streptorhynchus Chemung en sis, Conrad. 



Spirifer medialis, Hall. 



Spirlfer granxdifer, Hall. 



Spir'ifer nrncronatus, Hall (?). 



JRhynchonella prolifica, Hall. 



Aniboccelia iimbonata, Conrad. 



Teyitacidites alternatus, Hall. 



Cypricardinia indenta, Conrad (?). 



Actino2)teria decussata, Hall. 



Crinoid stems. 



Station 502 A is one and one-half miles south of West Edmeston in 

 Edmeston, Otsego county. A small run, Burdick's, cuts through the 

 soil and to some extent into the rocks, affording exposures well up the 

 hill. The lowest exposure, 502 A^, is only a few rods east of Mr. 

 Burdick's farm house. The rock is a rather coarse arenaceous shale in 

 which fossils are common. The following species have been 

 identified: 



Spirifera medialis. Hall. The specimens are all small. 



Actinopteria JBoydi, Conrad (?). 



Leptodesma Roger si, Hall (?). 



8tropheodo7ita perplana, Conrad. 



Goniatites, 



Spirijer m/acronatus, Conrad. 



Rhynchonella. 



JSfyassa arguta, Hall. 



Orthoceras. 



A short distance up the creek is a cliff of shales, 502 A^, slightly 

 more argillaceous than A^. Fossils are not common, all the following 

 species being rare: 



Rhynchonella; small forms. 



Spirifera medialis. Hall (?). 



iMnulicardium fragile. Hall (?). 



Tellinopsis suhemarginata, Conrad. 



A specimen belonging to the Pectinidoe. 



502 A3 are thin arenaceous shales, quite regularly bedded. Some of 

 the layers contain black clay pebbles. Fossils are^more abundant than 

 in A^. The fauna is: 



Rhynchonella. 



The specimens are common, but they are all ^small. It is possible 

 that all of them may be the young of R, congregata, Conrad. Several 



