Hemleben, Christoph <br/><br/>
Surface texture and the first occurrence of spines in planktonic foraminifera from the early Tertiary 

 - Hannover  Bundesanstalt für Geowissenschaften und Rohstoffe  1991 
 - pp. 117-146 
<br/><br/><label>Subjects--Topical Terms: </label><br/>FORAMINIFERA<br/>MICROPALEONTOLOGIA<br/>TERCIARIO