prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 stat. inval.
   Domain "Bacteria" Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024
     Phylum "Actinobacteria" Garrity and Holt 2001 see Phylum Actinobacteria Goodfellow 2012 nom. inval.
       Class Actinobacteria Stackebrandt et al. 1997 nom. illeg. see Class Actinomycetes Krassilnikov 1949 (Approved Lists 1980)
         Order Frankiales Sen et al. 2014
           1 Family Cryptosporangiaceae Zhi et al. 2009
           2 Family Frankiaceae Becking 1970 (Approved Lists 1980)
           3 Family Sporichthyaceae Rainey et al. 1997 [monotypic]
           4 Genus Motilibacter Lee 2012, incertae sedis