[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 "Bacteroidetes" Garrity and Holt 2001 nom. inval. see Phylum Bacteroidetes Krieg et al. 2012 stat. inval.
       Class "Bacteroidetes" see Class Bacteroidia
         Order "Bacteroidales" "Garrity and Holt 2001" nom. nud. see Order Bacteroidales Krieg 2012
           1 Family Bacteroidaceae Pribram 1933 (Approved Lists 1980)
           2 Family "Rikenellaceae" "Garrity and Holt 2001" nom. nud. see Family Rikenellaceae Krieg et al. 2012
           3 Family "Porphyromonadaceae" "Garrity and Holt 2001" nom. nud. see Family Porphyromonadaceae Krieg 2012
           4 Family "Prevotellaceae" "Garrity and Holt 2001" nom. nud. see Family Prevotellaceae Krieg 2012
           5 Genus Acetofilamentum Dietrich et al. 1989
           6 Genus Acetomicrobium Soutschek et al. 1985
           7 Genus Acetothermus Dietrich et al. 1988