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 Amoebidae Ehrenberg, 1838
         1 Genus Amoeba Bory de St. Vincent, 1822
         2 Genus Chaos Linnaeus, 1767
         3 Genus Polychaos Schaeffer, 1926
         4 Genus Parachaos Willumsen et al., 1987
         5 Genus Trichamoeba Fromentel, 1874
         6 Genus Hydramoeba Reynolds & Looper, 1928
         7 Genus Deuteramoeba Page, 1986