Procaryotic Genera Domain "Bacteria" Woese et al. 1990 Phylum Firmicutes corrig. Gibbons and Murray 1978 (Approved Lists 1980) Class Mollicutes Edward and Freundt 1967 (Approved Lists 1980) Family "Erysipelotrichaceae" nom. inval., incertae sedis see Family Erysipelotrichaceae Verbarg et al. 2004 Genus Erysipelothrix Rosenbach 1909 (Approved Lists 1980)