578 INDEX TO THE STRATIGRAPHY OF NORTH AMERICA. 



Above the Rhsetic beds come others with marine fossils described by Lundgren. Aucella 

 are completely absent, and Lundgren thinks that these beds should be referred to the Kelloway 

 stage of the Jurassic system, and that they are very likely closely allied to the fossiliferous beds 

 on the south side of Kuhn Island. Identifiable ammonites and belenmites were not found in 

 the samples that were brought home, and most of the specimens are lamellibranchs belonging 

 to the families Ostrea, Pecten, Avicula, Modiola, Astarte, Panopsea, Pholadomya, Lyonsia, and 

 others. The fossils occur in an impure limestone that in places becomes conglomeratic or even 

 changes into shell breccia. The fossil-carrying bed is 2.2 meters thick and is overlain by gray 

 sandy slates, yellowish sandstones, etc., without fossils. A basalt bed 3 meters thick is inter- 

 bedded with the nonfossiliferous layers. The beds dip about 6° S. 50° W. and rise thereforei 

 toward the inner part of Jurry Inlet. 



