prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 Domain "Bacteria" Woese et al. 1990 Phylum "Planctomycetes" Garrity and Holt 2001 Class "Planctomycetacia" [monotypic] 1 Order Planctomycetales Schlesner and Stackebrandt 1987 [monotypic]