Gordon, Mackenzie  1913- <br/><br/>
Carboniferous cephalopods of Arkansas / 
by Mackenzie Gordon. 
 - Washington:   United States Government Printing Office,   1964.  
 - vii, 322 p., 30 plates :  ill., maps, tables ;  29 cm. 
 -  460 .
<br/><br/>Includes bibliographical references (p. 290-303) and index (p. 305-322). 
<br/><br/> Descriptions and illustrations of 4 belemnoids, 73 nautiloids, and 79 ammonoids, their distribution in stratigraphic zones and their correlation. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cephalopoda, Fossil<br/>Paleontology--Arkansas<br/>Paleontology--Carboniferous
<br/><br/><label>Dewey Class. No.: </label>564.5