Kummel, Bernhard,  1919- <br/><br/>
American Triassic coiled nautiloids. 

 - Washington :  U.S. Govt. Print. Off.,  1953. 
 - 104 p. :  ill., 19 plates on 10 leaves, diagrs., tables. ;  29 cm. 
<br/><br/> "A study of the classification and evolution of late Paleozoic and early Mesozoic cephalopods, and description of new species." 
<br/><br/>Bibliography : p. 89-93. 
<br/><br/><label>LCCN: </label>gs 53000243  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nautiloidea, Fossil<br/>Paleontology--United States<br/>Paleontology--Triassic
<br/><br/><label>LC Class. No.: </label>QE75  / .P9 no. 250 
<br/><br/><label>Dewey Class. No.: </label>564.52 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.16:250