Ward, Peter Douglas,  1949- <br/><br/>
On Methuselah's trail :  living fossils and the great extinctions / 
Peter Douglas Ward ; [illustrations by Linda Krause, unless noted otherwise]. 
 - New York :  W.H. Freeman,  c1992. 
 - xii, 212 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0716722038 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Living fossils.<br/>Extinction (Biology)
<br/><br/><label>LC Class. No.: </label>QL88.5  / .W37 1991 
<br/><br/><label>Dewey Class. No.: </label>591.3/8