organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain eukaryotes see Domain Eukaryota Chatton, 1925
     amoeboid protists
       Gymnamoebae - naked ramicristate amoebae
         Order Euamoebida Lepşi, 1960
           Family Amoebidae Ehrenberg, 1838
             1 Genus Chaos Linnaeus, 1767
             2 Genus Parachaos Willumsen et al., 1987
             3 Genus Trichamoeba Fromentel, 1874
             4 Genus Hydramoeba Reynolds & Looper, 1928
             5 Genus Polychaos Schaeffer, 1926
             6 Genus Deuteramoeba Page, 1986
             7 Genus Amoeba Bory de St. Vincent, 1822
             8 Genus Metachaos Schaeffer, 1926