 
    
    
     
    
    Caption: A-B , Plesioneuron tuberculatum . A , lower surface of central lobes of a middle pinna; B , detail of A  (A-B , J.Monselma 08, K). C-E , Amphineuron . C , A. terminans , lower surface of central lobes of a middle pinna (L.J.Brass 19234, K). D-E , A. immersum . D , lower surface of central lobes of a middle pinna; E , detail of D  (D-E , M.J.Manski, BRI 261934).Illustrators: P.J.Edwards.
Flora of Australia  Volume 48 (1998) figure 118.