life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukarya Chatton, 1925 see Domain Eukaryota Chatton, 1925
     Kingdom Protoctista Hogg, 1860
       Phylum Xenophyophora Schulze, 1904
         Class Psamminida Tendal, 1972 see Order Psamminida Tendal, 1972
           1 Family Psammettidae Tendal, 1972
           2 Family Psamminidae Haeckel, 1889
           3 Family Syringamminidae Tendal, 1972
           4 Family Cerelasmidae Tendal, 1972