Imlay, Ralph Willard <br/><br/>
Ammonites from the Buchia zones in northwestern California and southwestern Oregon,  by... and David L. Jones 

 - Washington :  U. S. Govt. Print. Off.,  1970 
 - iv, 59, 31 p 
 - United States. Geological Survey. Professional paper ;  no. 647-BJurassic (Tithonian) and cretaceous Buchia zones in northwestern California and southwestern Oregon .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleontology--Oregon<br/>Paleontology--Jurassic<br/>Paleontology--Cretaceous<br/>Paleontology--California<br/>Ammonoidea
<br/><br/><label>LC Class. No.: </label>QE75 P9 no. 647-B