Rhizopoda Dujardin, 1835 - rhizopods see Phylum Cercozoa Cavalier-Smith, 1998
   Class Lobosea (Carpenter, 1861) Cavalier-Smith, 1993 see Subphylum Lobosa Carpenter, 1861
     Subclass Gymnamoebia (Haeckel, 1862) Cavalier-Smith, 1993 see [unranked] Gymnamoebae
       Order Euamoebida Lepşi, 1960
         Family Vannellidae Bovee, 1970
           Genus Pessonella M. Pussard, 1973, nom. inq. [monotypic]
             41 Pessonella marginata Pussard, 1973