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
       residual free-living and predatory heterotrophic flagellates
         Family Spongomonadidae Hibberd, 1983
           1 Genus Rhipidodendron Stein, 1878
           2 Genus Spongomonas Stein, 1878