organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Monera Haeckel 1866 see Domain Bacteria Woese et al. 1990
     Phylum "fermenting bacteria" see Phylum Firmicutes corrig. Gibbons and Murray 1978 (Approved Lists 1980)
       Class "Gram-Negative Cocci" see Family Acidaminococcaceae Marchandin et al., 2010
         1 Genus Veillonella Prévot 1933 (Approved Lists 1980)
         2 Genus Acidaminococcus Rogosa 1969 (Approved Lists 1980)
         3 Genus Megasphaera Rogosa 1971 (Approved Lists 1980)