[living organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Prokaryota Margulis 1974 nom. nud.
     Kingdom Bacteria Cavalier-Smith 2002 stat. inval. - bacteria see Domain Bacteria Woese et al. 1990 stat. inval.
       Subkingdom Negibacteria Cavalier-Smith 2002 stat. inval. - negibacteria see Domain Bacteria Woese et al. 1990 stat. inval.
         Phylum Planctomycetes Garrity and Holt 2001 nom. inval. see Phylum Planctomycetota Garrity and Holt 2021
           Class Phycisphaerae Fukunaga et al. 2010 [monotypic]
             1 Order Phycisphaerales Fukunaga et al. 2010