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 Terrabacteria Battistuzzi et al. 2004
               Phylum Firmicutes corrig. Gibbons and Murray 1978 (Approved Lists 1980)
                 Class Negativicutes Marchandin et al. 2010 [monotypic]
                   Order Selenomonadales Marchandin et al. 2010
                     Family Sporomusaceae Campbell et al. 2015
                       01 Genus Acetonema Kane and Breznak 1992 [monotypic]
                       02 Genus Anaeroarcus Strömpl et al. 1999 [monotypic]
                       03 Genus Anaeromusa Baena et al. 1999 [monotypic]
                       04 Genus Anaerosinus Strömpl et al. 1999 [monotypic]
                       05 Genus Dendrosporobacter Strömpl et al. 2000 [monotypic]
                       06 Genus Pelosinus Shelobolina et al. 2007
                       07 Genus Propionispora Biebl et al. 2001
                       08 Genus Sporolituus Ogg and Patel 2009
                       09 Genus Sporomusaᵀ Möller et al. 1985
                       10 Genus Thermosinus Sokolova et al. 2004 [monotypic]