[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024
     Phylum Firmicutes (Gibbons and Murray 1978) Garrity and Holt 2001 stat. inval. see Phylum Bacillota Gibbons and Murray 2021
       Class "Clostridia" "Garrity and Holt 2001" nom. nud. see Class Clostridia Rainey 2010
         Order Clostridiales Prévot 1953 (Approved Lists 1980) see Order Eubacteriales Buchanan 1917 (Approved Lists 1980)
           Family "Acidaminococcaceae" "Garrity and Holt 2001" nom. nud. see Family Acidaminococcaceae Marchandin et al. 2010
             Genus Veillonella Prévot 1933 (Approved Lists 1980)
               [Veillonella parvula] (Veillon and Zuber 1898) Prévot 1933 (Approved Lists 1980)
                 Veillonella parvula subsp. parvulaᵀ (Veillon and Zuber 1898) Rogosa 1965 (Approved Lists 1980) see Veillonella parvula (Veillon and Zuber 1898) Prévot 1933 (Approved Lists 1980)