[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   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)
         Subclass Actinobacteridae Stackebrandt et al. 1997 see Class Actinobacteria Stackebrandt et al. 1997 nom. illeg.
           Order Actinomycetales Buchanan 1917 (Approved Lists 1980)
             Suborder Actinomycineae (sic) Stackebrandt et al. 1997 see Suborder Actinomycetineae corrig. Stackebrandt et al. 1997
               Family Actinomycetaceae Buchanan 1918 (Approved Lists 1980)
                 Genus Arcanobacterium Collins et al. 1983
                   1 Arcanobacterium haemolyticum (ex MacLean et al. 1946) Collins et al. 1983
                   2 Arcanobacterium bernardiae (Funke et al. 1995) Pascual Ramos et al. 1997
                   3 Arcanobacterium bialowiezense Lehnen et al. 2006
                   4 Arcanobacterium bonasi Lehnen et al. 2006
                   5 Arcanobacterium hippocoleae Hoyles et al. 2002
                   6 Arcanobacterium phocae Pascual Ramos et al. 1997
                   7 Arcanobacterium pluranimalium Lawson et al. 2001
                   8 Arcanobacterium pyogenes (Glage 1903) Pascual Ramos et al. 1997