living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Protozoa Goldfuss, 1818 see Kingdom Protozoa Goldfuss, 1818
         Phylum Sarcomastigophora Honigberg & Balamuth, 1963
           Subphylum Sarcodina - amebas
             Superclass Actinopoda Calkins, 1902 - actinopodans see Phylum Actinopoda Calkins, 1902
               Class Acantharia Haeckel, 1881 see Class Acantharea Haeckel, 1881
                 Order Arthracanthida Schewiakoff, 1926
                   1 Suborder Sphaenacanthina see Suborder Sphaenacantha Schewiakoff, 1926
                   2 Suborder Phyllacanthina Smith & Wright, 1989 see Suborder Phyllacantha Schewiakoff, 1926
                   3 Genus Lithoptera Müller, 1858
                   4 Genus Amphistaurus Schewiakoff, 1926