[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum Firmicutes corrig. Gibbons and Murray 1978 (Approved Lists 1980)
       Class "Clostridia" Garrity et al. 2001 nom. ined. see Class Clostridia Rainey 2010
         Order Clostridiales Prévot 1953 (Approved Lists 1980)
           Family "Acidaminococcaceae" Marchandin et al., 2010 see Family Acidaminococcaceae Marchandin et al. 2010
             Genus Selenomonas von Prowazek 1913 (Approved Lists 1980)
               1 Selenomonas sputigena (Flügge 1886) Boskamp 1922 (Approved Lists 1980)
               2 Selenomonas artemidis Moore et al. 1987
               3 Selenomonas dianae Moore et al. 1987
               4 Selenomonas flueggei Moore et al. 1987
               5 Selenomonas infelix Moore et al. 1987
               6 Selenomonas lacticifex Schleifer et al. 1990
               7 Selenomonas lipolytica Dighe et al. 1998
               8 Selenomonas noxia Moore et al. 1987
               9 [Selenomonas ruminantium] (Certes 1889) Wenyon 1926 (Approved Lists 1980)