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 Micrococcales Prévot 1940 (Approved Lists 1980)
           Family Promicromonosporaceae Rainey et al. 1997
             1 Genus Cellulosimicrobium Schumann et al. 2001
             2 Genus Isoptericola Stackebrandt et al. 2004
             3 Genus Myceligenerans Cui et al. 2004
             4 Genus Promicromonospora Krassilnikov et al. 1961 (Approved Lists 1980)
             5 Genus Xylanibacterium Rivas et al. 2004 see Genus Xylanimonas Rivas et al. 2003
             6 Genus Xylanimicrobium Stackebrandt and Schumann 2004 see Genus Xylanimonas Rivas et al. 2003
             7 Genus Xylanimonas Rivas et al. 2003