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 Myxobacteria see Order Myxococcales Tchan et al. 1948 (Approved Lists 1980) Class Cytophagales Leadbetter, 1974 see Order Sphingobacteriales Kämpfer, 2012 1 Family Cytophagaceae Stanier 1940 (Approved Lists 1980) 2 Genus Flexithrix Lewin 1970 (Approved Lists 1980) 3 Genus Saprospira Gross 1911 (Approved Lists 1980) 4 Genus Sporocytophaga Stanier 1940 (Approved Lists 1980) 5 Family Beggiatoaceae Migula 1894 (Approved Lists 1980) see Family Thiotrichaceae 6 Family Simonsiellaceae Steed 1962 (Approved Lists 1980) see Family Neisseriaceae Prévot 1933 (Approved Lists 1980)