PROCEEDINQS 



OP THE 



CALIFORNIA ACADEMY OF SCIENCES 

 Fourth Series 

 Vol. IV, pp. 113-128, pis. 11-12. December 30, 1914. 



IV. 



The Fauna of the Siphonalia sutterensis Zone 

 in the Roseburg Quadrangle, Oregon 



Roy E. Dickerson 



Assistant Curator 

 Department of Invertebrate Paleontology 



SAN FRANCISCO 



Published by the Academy 



1914 



