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 Myxobacteriales see Order Myxococcales Tchan et al. 1948 (Approved Lists 1980) Genus Polyangium Link 1809 (Approved Lists 1980) Polyangium violaceum