prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 Domain "Bacteria" Woese et al. 1990 Phylum "Proteobacteria" Garrity et al. 2005 see Superphylum Proteobacteria Craig et al. 2010 Class Gammaproteobacteria Garrity et al. 2005 Order Cellvibrionales Spring et al. 2015 1 Family Cellvibrionaceae Spring et al. 2015 2 Family Halieaceae Spring et al. 2015 3 Family Microbulbiferaceae Spring et al. 2015 [monotypic] 4 Family Porticoccaceae Spring et al. 2015 [monotypic] 5 Family Spongiibacteraceae Spring et al. 2015