organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Protoctista Hogg, 1860
     Phylum Zoomastigina see Phylum Discomitochondria
       Class "pyrsonymphids"
         1 Genus Notila Cleveland
         2 Genus Oxymonas Janicki, 1915
         3 Genus Pyrsonympha Leidy, 1877
         4 Genus Saccinobaculus Cleveland, 1934