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 Thecamoebidae Schaeffer, 1926
           1 Genus Thecamoeba Fromentel, 1874
           2 Genus Sappinia Dangeard, 1896 [monotypic]
           3 Genus [Dermamoeba] Page & Blakey, 1979
           4 Genus [Paradermamoeba] Smirnov & Goodkov, 1993
           5 Genus [Pseudothecamoeba] Page, 1988 [monotypic]
           6 Genus Parvamoeba Rogerson, 1993 [monotypic]
           7 Genus [Thecochaos] Page, 1981
           8 Genus Stenamoeba Smirnov, Nassonova, Chao & Cavalier-Smith, 2007 [monotypic]