Kingdom Protoctista Hogg, 1860
   Phylum Rhizopoda Dujardin, 1835 - rhizopods see Phylum Cercozoa Cavalier-Smith, 1998
     Class Lobosea (Carpenter, 1861) Cavalier-Smith, 1993 see Subphylum Lobosa Carpenter, 1861
       1 Subclass Gymnamoebia (Haeckel, 1862) Cavalier-Smith, 1993 see [unranked] Gymnamoebae
       2 Subclass Testacealobosa see Subclass Testacealobosia de Saedeleer, 1934