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
             Genus Naegleria Aléxéieff, 1912