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 Symphyacanthida Schewiakoff, 1926
           Family Astrolithidae Haeckel, 1887
             1 Genus Heliolithium Schewiakoff, 1926
             2 Genus Acantholithium Haeckel, 1887
             3 Genus Astrolithium Haeckel, 1860
             4 Genus Astrolonche Haeckel, 1881