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 Xenophyophorea Schulze, 1904
         Order Psamminida Tendal, 1972
           Family Psammettidae Tendal, 1972
             1 Genus Psammetta Schulze, 1906
             2 Genus Homogammina Gooday & Tendal, 1988
             3 Genus Maudammina Tendal, 1972