plantenrijk Haeckel (1866) - plants
   [Division] Protophyta Sachs (1874) - primitive plants
     Class Schizomycetes Nägeli 1857 nom. inval. - bacteria and related forms see Class Schizomycetes Nägeli 1857 (Approved Lists 1980) nom. illeg., nom. rej.
       Order Actinomycetales Buchanan 1917 nom. inval.
         Family Actinomycetaceae Buchanan 1918 nom. inval.
           Genus Actinomyces Harz 1877 nom. inval.