[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum "Planctomycetes" Garrity and Holt 2001
       Class "Planctomycetacia"
         Order Planctomycetales Schlesner and Stackebrandt 1987
           Family Planctomycetaceae Schlesner and Stackebrandt 1987
             1 Genus Planctomyces Gimesi 1924 (Approved Lists 1980)
             2 Genus Blastopirellula Schlesner et al. 2004
             3 Genus Gemmata Franzmann and Skerman 1985
             4 Genus Isosphaera Giovannoni et al. 1995
             5 Genus Pirellula Schlesner and Hirsch 1987
             5.0 Genus Pirella Schlesner and Hirsch 1984, nom. illeg. see Genus Pirellula Schlesner and Hirsch 1987
             6 Genus Rhodopirellula Schlesner et al. 2004