[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 "Bacilli" "Garrity and Holt 2001" nom. nud. see Class Bacilli Ludwig et al. 2010
         Order Bacillales Prévot 1953 (Approved Lists 1980) see Order Caryophanales Peshkoff 1939 (Approved Lists 1980)
           Family "Listeriaceae" "Garrity and Holt 2001" nom. nud. see Family Listeriaceae Ludwig et al. 2010
             Genus Listeria Pirie 1940 (Approved Lists 1980) nom. cons.
               [Listeria ivanovii] Seeliger et al. 1984
                 Listeria ivanovii subsp. ivanoviiᵀ (Seeliger et al. 1984) Boerlin et al. 1992