prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 Domain "Bacteria" Woese et al. 1990 Phylum "Actinobacteria" Garrity and Holt 2001 Class Rubrobacteria Suzuki 2013 Order Solirubrobacterales Reddy and Garcia-Pichel 2009 1 Family Conexibacteraceae Stackebrandt 2005 [monotypic] 2 Family Patulibacteraceae Takahashi et al. 2006 [monotypic] 3 Family Solirubrobacteraceae Stackebrandt 2005 [monotypic]