Imlay, Ralph W.  1908- <br/><br/>
Middle Jurassic (Bajocian) ammonites from eastern Oregon / 
by Ralph W. Imlay. 
 - Washington:   United States Government Printing Office,   1973.  
 - iv, 100 p., 47 plates :  ill., taples,.  +1 map 
 -  756 .
<br/><br/> Conduct maps: Index maps showing general and detailed positions of bajocian ammonite localities in eastern oregon. 
<br/><br/> Bajocian ammonites of eastern Oregon greatly resemble those of Alaska and Europe, indicate marine connections with Europe, and permit accurate zonal dating in the Pacific Coast region. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ammonoidea--Oregon<br/>Paleontology--Jurassic<br/>Paleontology--Oregon
<br/><br/><label>Dewey Class. No.: </label>564.53