336 



A'. .)/. Kindle — Faunal Succession in the 



ism of the beds containing them. These later terranes have 

 famished sufficient material, however, to correlate the rocks of 

 certain localities definitely with the Carboniferous and Silurian 

 faunas in other parts of Alaska where the faunas are well pre- 



Fig. 1. 



Fig. 1. Geologic sketch map of the western part of the Seward Peninsula 

 showing the type region of the Port Clarence limestone. (After Brooks, 

 Knopf, and others.) 



served and well known. In the case of the Ordovician fauna 

 the collections have afforded excellent material, representing 

 not only better fossils but a much larger fauna than has been 

 obtained elsewhere in Alaska from rocks of this age. The 

 Cambrian fauna is also represented by well preserved shells. 

 It includes, however, a rather small number of species which 

 are represented by great numbers of individuals. Since the 



