[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum "Bacteroidetes" Garrity and Holt 2001 see Phylum Bacteroidetes Krieg et al. 2012
       Class "Bacteroidetes" Krieg et al., 2012 see Class Bacteroidia Krieg et al., 2012
         Order "Bacteroidales" Krieg 2012 see Order Bacteroidales Krieg 2012
           Family "Porphyromonadaceae" nom. inval. see Family Porphyromonadaceae Krieg 2012
             1 Genus Porphyromonas Shah and Collins 1988
             1.0 Genus Oribaculum Moore and Moore 1994 see Genus Porphyromonas Shah and Collins 1988
             2 Genus Dysgonomonas Hofstad et al. 2000
             3 Genus Paludibacter Ueki et al. 2006
             4 Genus Parabacteroides Sakamoto and Benno 2006
             5 Genus Proteiniphilum Chen and Dong 2005
             6 Genus Tannerella Sakamoto et al. 2002