prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 Domain "Bacteria" Woese et al. 1990 Phylum "Firmicutes" corrig. Gibbons and Murray 1978 (Approved Lists 1980) Class Clostridia Rainey 2010 Order Halanaerobiales corrig. Rainey and Zhilina 1995 Family Halobacteroidaceae Zhilina and Rainey 1995 01 Genus Acetohalobium Zhilina and Zavarzin 1990 02 Genus Fuchsiella Zhilina et al. 2012 03 Genus Halanaerobacter corrig. Liaw and Mah 1996 04 Genus Halanaerobaculum Hedi et al. 2009 05 Genus Halobacteroides Oren et al. 1984 06 Genus Halonatronum Zhilina et al. 2001 07 Genus Natroniella Zhilina et al. 1996 08 Genus Orenia Rainey and Stackebrandt 1995 09 Genus Selenihalanaerobacter Switzer Blum et al. 2001 10 Genus Sporohalobacter Oren et al. 1988