Protozoa Goldfuss, 1818 - protozoans
   Phylum Sarcomastigophora Honigberg & Balamuth, 1963
     Subphylum Sarcodina - amebas
       Superclass Rhizopoda - rhizopodans see Phylum Rhizopoda Dujardin, 1835
         Class Lobosea (Carpenter, 1861) Cavalier-Smith, 1993 see Subphylum Lobosa Carpenter, 1861
           Subclass Testacealobosia de Saedeleer, 1934
             Order Arcellinida Kent, 1880 - shelled lobosid amebas
             Order Himatismenida Page, 1987
             Order Trichosida Möbius, 1889