UNIVERSITY OF CALIFORNIA PUBLICATIONS 

 Bulletin of the Department of Geology 



Vol. 3, No. 18, pp. 397-402, PI. 47. ANDREW C. LAWSON, Editor 



A NEW CESTRAC10NT SPINE 

 FROM THE LOWER TRIASSIC 

 OF IDAHO 



BY 



HERBERT M. EVANS 



BERKELEY 

 THE UNIVERSITY PRESS 



MAY, 1904 

 PRICE 10 CENTS 



