life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Prokarya see Domain Bacteria Woese et al. 1990
     Kingdom Bacteria (Cohn 1870) Cavalier-Smith 1983 - bacteria see Kingdom Bacteria Cavalier-Smith 2002
       Subkingdom Eubacteria Cavalier-Smith 1981 see Domain Bacteria Woese et al. 1990
         Division Gracilicutes Gibbons and Murray 1978 (Approved Lists 1980) see Phylum Gracilicutes
           Phylum Saprospirae see Domain Bacteria Woese et al. 1990
             01 Genus Alysiella Langeron 1923 (Approved Lists 1980)
             02 Genus Bacteroides Castellani and Chalmers 1919 (Approved Lists 1980)
             03 Genus Capnocytophaga Leadbetter et al. 1982
             04 Genus Cytophaga Winogradsky 1929 (Approved Lists 1980)
             06 Genus Flexibacter Soriano 1945 (Approved Lists 1980)
             07 Genus Flexithrix Lewin 1970 (Approved Lists 1980)
             08 Genus Fusobacterium Knorr 1922 (Approved Lists 1980)
             09 Genus Herpetosiphon Holt and Lewin 1968 (Approved Lists 1980)
             10 Genus Microscilla Pringsheim 1951 (Approved Lists 1980)
             11 Genus Saprospira Gross 1911 (Approved Lists 1980)
             12 Genus Simonsiella Schmid 1922 (Approved Lists 1980)
             13 Genus Sporocytophaga Stanier 1940 (Approved Lists 1980)