Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Domain Bacteria Woese et al. 1990 [paraphyletic?] Superphylum Planctomycetes-Verrucomicrobia-Chlamydiae (PVC) Wagner and Horn 2006 Phylum "Planctomycetes" Garrity and Holt 2001 Class "Planctomycetacia"ᵀ [monotypic] Order Planctomycetalesᵀ Schlesner and Stackebrandt 1987 [monotypic] Family Planctomycetaceaeᵀ Schlesner and Stackebrandt 1987 [Genus Pirella Schlesner and Hirsch 1984, nom. illeg.] see Genus Pirellula Schlesner and Hirsch 1987 [Pirella marina Schlesner 1987 comb. illeg.] see Blastopirellula marina (Schlesner 1987) Schlesner et al. 2004