prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 Domain "Bacteria" Woese et al. 1990 Phylum "Bacteroidetes" Krieg et al. 2012 Class Sphingobacteriia Kämpfer 2012 [monotypic] Order Sphingobacteriales Kämpfer 2012 Family Saprospiraceae Krieg et al. 2012 Genus Aureispira Hosoya et al. 2006