organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain eukaryotes see Domain Eukaryota Chatton, 1925
     amoeboid and flagellated protists
       Class Heterolobosea Page & Blanton, 1985
         Order Schizopyrenida Singh, 1952
           Family Vahlkampfiidae Jollos, 1917
             01 Genus Lyromonas Cavalier-Smith, 1993
             02 Genus Vahlkampfia Chatton & LaLung-Bonnaire, 1912
             03 Genus Pseudovahlkampfia Sawyer, 1980
             04 Genus Paratetramitus J.F. Darbyshire et al., 1976
             05 Genus Heteramoeba Droop, 1962
             06 Genus Adelphamoeba J. Napolitano et al., 1970
             07 Genus Naegleria Aléxéieff, 1912
             08 Genus Didascalus B.N. Singh, 1952
             09 Genus Trimastigamoeba Whitmore, 1911
             10 Genus Psalteriomonas Broers, Stumm, Vogels & Brugerolle, 1990
             11 Genus Willaertia De Jonckheere et al., 1984
             12 Genus Tetramastigamoeba Singh & Hanumaiah, 1977
             13 Genus Tetramitus Perty, 1852
             14 ?Genus Percolomonas T. Fenchel & D.J. Patterson, 1986