Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Domain Bacteria Woese et al. 2024
             Kingdom Bacillatiᵀ (Gibbons and Murray 1978) Oren and Göker 2024
               Phylum Bacillotaᵀ Gibbons and Murray 2021
                 Class Negativicutes Marchandin et al. 2010
                   Order Selenomonadales Marchandin et al. 2010
                     Family Selenomonadaceaeᵀ Campbell et al. 2015
                       Genus Selenomonasᵀ von Prowazek 1913 (Approved Lists 1980) nom. cons.
                         1 Selenomonas artemidis Moore et al. 1987
                         2 Selenomonas dianae Moore et al. 1987
                         3 Selenomonas flueggei Moore et al. 1987
                         4 Selenomonas infelix Moore et al. 1987
                         5 Selenomonas lacticifex Schleifer et al. 1990
                         6 Selenomonas lipolytica Dighe et al. 1998
                         7 Selenomonas noxia Moore et al. 1987
                         8 Selenomonas ruminantium (Certes 1889) Wenyon 1926 (Approved Lists 1980)
                         9 Selenomonas sputigena (Flügge 1886) Boskamp 1922 (Approved Lists 1980)