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 "kinetoplastids" see [unranked] kinetoplastids
         Genus Cephalothamnion Lemmerman, 1913 see Genus Cephalothamnium F. Stein, 1878
           Cephalothamnion cyclopum F. Stein, 1878 see Cephalothamnium cyclopum F. Stein, 1878