organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Kingdom Monera Haeckel 1866 see Domain Bacteria Woese et al. 1990 Phylum "fermenting bacteria" see Phylum Firmicutes corrig. Gibbons and Murray 1978 (Approved Lists 1980) ?Genus Bacteroides Castellani and Chalmers 1919 (Approved Lists 1980) Bacteroides fragilis (Veillon and Zuber 1898) Castellani and Chalmers 1919 (Approved Lists 1980)