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>LCCN: </label>73-13997 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vertebrates--Evolution<br/>Vertebrates, Fossil