Stahl, Barbara J <br/><br/>
Vertebrate history :  problems in evolution / 
by Barbara J. Stahl. 
 - New York :  McGraw-Hill,  1974. 
 - ix, 594 p. :  ill. ;  24 cm. 
 - McGraw-Hill series in population biology .
<br/><br/>p. 560-579. 
<br/><br/><label>ISBN: </label>0070606986 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vertebrates--Evolution<br/>Vertebrates, Fossil