no NEW YORK STATE MUSEUM 



Leptobolus insignis Hall r 



Rhynchotrema increbescens (Hall) 



Ctenodonta levata (Hall) r 



Primitiella unicornis Ulrich cc 



Ulrichia bivertex (Ulrich) cc 



Cryptolithus tesselatus Green 



Bathyurus cf. spiniger (Hall) (glabella, free cheek, *pygidium) r 



In the higher transitional bedsJ . . . 



[A 10 A 13 



Corynoides calicularis Nicholson c 



Climacograptus strictus Riiedemann cc 



Climacograptus spiniferus Ruedemann r 



Climacograptus typicalis Hall rr (one specimen) 



Diplograptus amplexicaulis Hall r 



Lasiograptus eucharis (Hall) r 



Mesograptus mohawkensis Ruedemann c 



Leptobolus insignis Hall c 



Schizambon cf. canadensis (Ami) rr 



Lingula curta Hall c 



Dalmanella rogata Sardeson c 



Ulrichia bivertex (Ulrich) c 



Lepidocoleus jamesi (Hall and Whitfield) rr 



This fauna of the transitional zone is unmistakably that of the 

 Canajoharie shale and corresponds to the lower division of the 

 Canajoharie. 



The black shale in the northern exposure, following the transi- 

 tional beds has afforded to Mr. Gould: 



Corynoides calicularis Nicholson c 



Climacograptus strictus Ruedemann c 



Mesograptus mohawkensis Ruedemann c 



Glossograptus quadrimuoronatus cornutus Ruedemann r 



Lingula sp. 



Schizambon canadensis (Ami) rr 



Dalmanella rogata Sardeson c 



Cryptolithus tesselatus Green cc 



Calymmene senaria Conrad 



Ceraurus sp. 



Geisonoceras sp. 



This upper shale mass is likewise undoubtedly of Canajoharie age 

 and corresponds to the upper division as exposed in the Rural ceme- 

 tery, Albany, N. Y. 



Isolated outcrops of black calcareous shale along the east shore of 

 Button bay, representing still higher beds of the shale formation 

 contain : 



