Jones, David Lawrence <br/><br/>
Structural and stratigraphic significance of the Buchia zones   in the Colyear Springs-Paskenta area, California, by..., Edgar H. Bailey and Ralph W. Imlay 

 - Washington :  U. S. Govt. Print. Off.,  1969 
 - iii, 24, 11 p 
 - United States. Geological Survey. Professional paper ;  no. 647-AJurassic (Tithonian) and cretaceous Buchia zones in northwestern California and southwestern Oregon .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleontology--California--Colyear Springs-Paskenta region<br/>Geology--California--Colyear Springs-Paskenta region
<br/><br/><label>LC Class. No.: </label>QE75 P9 no. 647-A