organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Protoctista Hogg, 1860
     Phylum Phaeophyta Kjellman (1891) see Phylum Phaeophycota
       Genus Scytosiphon C.Agardh (1820), nom. cons.