prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 Domain "Bacteria" Woese et al. 1990 Phylum "Chlorobi" Iino et al. 2010 Class Ignavibacteria Iino et al. 2010 [monotypic] Order Ignavibacteriales Iino et al. 2010 Family "Melioribacteraceae" Podosokorskaya et al. 2013 [monotypic] 1 Genus Melioribacter Podosokorskaya et al. 2013