Procaryotic Genera Domain "Bacteria" Woese et al. 1990 Phylum Actinobacteria Garrity and Holt 2001 [monotypic] Class Actinobacteria Stackebrandt et al. 1997 Subclass Actinobacteridae Stackebrandt et al. 1997 see Class Actinobacteria Stackebrandt et al. 1997 Order Actinomycetales Buchanan 1917 (Approved Lists 1980) Suborder Pseudonocardineae Stackebrandt et al. 1997 Family Actinosynnemataceae Labeda and Kroppenstedt 2000 see Family Pseudonocardiaceae Embley et al. 1989 Genus Saccharothrix Labeda et al. 1984