Domain Bacteria Woese et al. 1990 Phylum Actinobacteria Garrity and Holt 2001 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 Frankineae Stackebrandt et al. 1997 see Order Frankiales Sen et al. 2014 Family Sporichthyaceae Rainey et al. 1997 Genus Sporichthya Lechevalier et al. 1968 (Approved Lists 1980)