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
       Class Acantharea Haeckel, 1881
         Order Arthracanthida Schewiakoff, 1926
           Suborder Sphaenacantha Schewiakoff, 1926
             1 Family Acanthometridae Haeckel, 1887
             2 Family Dorataspidae Haeckel, 1887
             3 Family Phractopeltidae Haeckel, 1887
             4 Family Diploconidae Haeckel, 1887
             5 Family Lithopteridae Haeckel, 1887
             6 Family Hexalaspidae Haeckel, 1887