FOSSILS AND AGE OF THE YAKUTAT 
FORMATION 
DESCRIPTION OF COLLECTIONS MADE CHIEFLY 
NEAR KADIAK, ALASKA 
BY EDWARD OSCAR ULRICH 
DISTRIBUTION 
The collections here described and discussed are from 
three principal localities: Woody Island, Pogibshi Island, 
and the shore of Russell Fiord near Hidden Glacier. 
Pogibshi Island lies close to the village of Kadiak, being 
separated from the much larger Kadiak Island by the nar¬ 
row strait constituting Kadiak Harbor. Woody Island is 
a few miles distant, Woody and Pogibshi being members 
of a group of low islands constituted wholly of slate. 
The Hidden Glacier locality is nearly 500 miles to the 
eastward. A fourth locality, about 300 miles northeast 
of Kadiak, is indefinite in position, being represented only 
by a specimen from the back of Columbia Glacier, Prince 
William Sound. These four localities are correlated by 
means of a fossil species of definite character, Terehel - 
Una 'palachei , common to them all. At one locality, 
that near Hidden Glacier, the containing formation has 
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