Kerp, Hans <br/><br/>
Discovery of latest Carboniferous - early Permian radially symmetrical peltaspermaceous megasporophylls from Europe and North Africa 

 - Paris  Académie des Sciences|Elsevier  Avril 2001 
 - pp. 513-519  ilus. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CARBONIFERO<br/>FITOGEOGRAFIA<br/>PELTASPERMA<br/>PERMICO<br/>RADIACION
<br/><br/><label>Subjects--Geographic Terms: </label><br/>AFRICA<br/>EUROPA