organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain eukaryotes see Domain Eukaryota Chatton, 1925
     flagellated protists
       Order Oxymonadida Grassé, 1952 - oxymonads
         1 Family Polymastigidae Bütschli, 1884
         2 Family Saccinobaculidae see Family Saccinobaculidae Cavalier-Smith, 2012
         3 Family Pyrsonymphidae Grassi, 1892
         4 Family Streblomastigidae Kofoid & Swezy, 1919
         5 Family Oxymonadidae Kirby, 1928