SMITHSONIAN MISCELLANEOUS COLLECTIONS 

 VOLUME 149, NUMBER 7 



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SILICIFIED ORDOVICIAN BRACHIOPODS 

 FROM EAST-CENTRAL ALASKA 



(With 3 Plates) 



By 



REUBEN JAMES ROSS, JR. 



and 



J. THOMAS DUTRO, JR. 



U. S. Geological Survey 

 Denver, Colorado, and Washington, D. C. 





PER\ 



$ 



(MP 



(Publication 4654) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



MARCH 4, 1966 



