Frederiksen, Norman O. <br/><br/>
Stratigraphic, paleoclimatic, and paleobiogeographic significance of Tertiary sporomorphs from Massachusetts / 
by Norman O. Frederiksen. 
 - Washington:   United States Government Printing Office,   1984.  
 - iii, 25 p., 4 plates :  ill., tables, maps ;  29 cm. 
 -  1308 .
<br/><br/>Includes bibliographical references (p. 22-25). 
<br/><br/> Subtropical Miocene, temperate Pliocene, and reworked tropical Eocene sporomorph assemblages from eastern Massachusetts are described. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Palynology--Massachusetts<br/>Paleobotany--Tertiary
<br/><br/><label>Dewey Class. No.: </label>561.1309744