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 Thermolithobacteria Sokolova et al. 2007 [monotypic] Order Thermolithobacterales Sokolova et al. 2007 [monotypic] Family Thermolithobacteraceae Sokolova et al. 2007 [monotypic] Genus Thermolithobacter Sokolova et al. 2007