Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Domain Bacteria Woese et al. 2024 Kingdom Pseudomonadati (Gibbons and Murray 1978) Oren and Göker 2024 Phylum Bacteroidota Krieg et al. 2021 Class Bacteroidiaᵀ Krieg 2012 [monotypic] Order Bacteroidalesᵀ Krieg 2012 Family Bacteroidaceaeᵀ Pribram 1933 (Approved Lists 1980) 01 Genus Acetofilamentum Dietrich et al. 1989 [monotypic] 02 Genus Acetothermus Dietrich et al. 1988 [monotypic] 03 Genus Bacteroidesᵀ Castellani and Chalmers 1919 (Approved Lists 1980) 04 Genus Phocaeicola Al Masalma et al. 2009 [monotypic] 05 Genus "Caecibacteroides" Kralova et al. 2022 nom. inval. 06 Genus "Massilibacteroides" Jneid et al. 2018 nom. inval. 07 Genus "Paraphocaeicola" Kralova et al. 2022 nom. inval. 08 Genus "Candidatus Avibacteroides" Gilroy et al. 2022 09 Genus "Candidatus Caccomonas" Gilroy et al. 2022 10 Genus "Candidatus Colenecus" Gilroy et al. 2022 nom. pro-inval. 11 Genus "Candidatus Colivivens" Gilroy et al. 2022 nom. pro-inval. 12 Genus "Candidatus Equicola" Gilroy et al. 2022 nom. pro-inval. 13 Genus "Candidatus Equimonas" Gilroy et al. 2022 nom. pro-inval. 14 Genus "Candidatus Faecinaster" Gilroy et al. 2022 nom. pro-inval. 15 Genus "Candidatus Minthosoma" Gilroy et al. 2022 nom. pro-inval. 16 Genus "Candidatus Minthousia" Gilroy et al. 2022 nom. pro-inval. 17 Genus "Candidatus Physcousia" Gilroy et al. 2022 nom. pro-inval.