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)
           Family "Paenibacillaceae" "Garrity and Holt 2001" nom. nud. see Family Paenibacillaceae De Vos et al. 2010
             1 Genus Paenibacillus Ash et al. 1994
             2 Genus Ammoniphilus Zaitsev et al. 1998
             3 Genus Aneurinibacillus Shida et al. 1996
             4 Genus Brevibacillus Shida et al. 1996
             5 Genus Oxalophagus Collins et al. 1994
             6 Genus Thermobacillus Touzel et al. 2000