procaryotes
   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)
           1 Family Bacillaceae Fischer 1895 (Approved Lists 1980)
           2 Family Planococcaceae Krassilnikov 1949 (Approved Lists 1980) see Family Caryophanaceae Peshkoff 1939 (Approved Lists 1980)
           3 Family Caryophanaceae Peshkoff 1939 (Approved Lists 1980) [monotypic]
           4 Family "Listeriaceae" "Garrity and Holt 2001" nom. nud. see Family Listeriaceae Ludwig et al. 2010
           5 Family "Staphylococcaceae" "Garrity and Holt 2001" nom. nud. see Family Staphylococcaceae Schleifer and Bell 2010
           6 Family "Sporolactobacillaceae" "Garrity and Holt 2001" nom. nud. see Family Sporolactobacillaceae Ludwig et al. 2010
           7 Family "Paenibacillaceae" "Garrity and Holt 2001" nom. nud. see Family Paenibacillaceae De Vos et al. 2010
           8 Family "Alicyclobacillaceae" "Garrity and Holt 2001" nom. nud. see Family Alicyclobacillaceae da Costa and Rainey 2010
           9 Family "Thermoactinomycetaceae" "Garrity and Holt 2001" nom. nud. [monotypic] see Family Thermoactinomycetaceae Matsuo et al. 2006