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 Ruminobacter (ex Sijpesteijn 1949) Stackebrandt and Hippe 1987