[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   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 Micrococcineae Stackebrandt et al. 1997 see Order Micrococcales Prévot 1940 (Approved Lists 1980)
               Family Micrococcaceae Pribram 1929 (Approved Lists 1980)
                 Genus Arthrobacter Conn and Dimmick 1947 (Approved Lists 1980)
                   01 Arthrobacter globiformis (Conn 1928) Conn and Dimmick 1947 (Approved Lists 1980)
                   02 Arthrobacter agilis (Ali-Cohen 1889) Koch et al. 1995
                   03 Arthrobacter albus Wauters et al. 2000
                   04 Arthrobacter ardleyensis Chen et al. 2005
                   05 Arthrobacter arilaitensis Irlinger et al. 2005
                   06 Arthrobacter atrocyaneus Kuhn and Starr 1960 (Approved Lists 1980) see Sinomonas atrocyanea (Kuhn and Starr 1960) Zhou et al. 2009
                   07 Arthrobacter aurescens Phillips 1953 (Approved Lists 1980)
                   08 Arthrobacter bergerei Irlinger et al. 2005
                   09 Arthrobacter castelli Heyrman et al. 2005
                   10 Arthrobacter chlorophenolicus Westerberg et al. 2000
                   11 Arthrobacter citreus Sacks 1954 (Approved Lists 1980)
                   12 Arthrobacter creatinolyticus Hou et al. 1998
                   13 Arthrobacter crystallopoietes Ensign and Rittenberg 1963 (Approved Lists 1980)
                   14 Arthrobacter cumminsii Funke et al. 1997
                   15 Arthrobacter flavus Reddy et al. 2000
                   16 Arthrobacter gandavensis Storms et al. 2003
                   17 Arthrobacter gangotriensis Gupta et al. 2004
                   18 Arthrobacter histidinolovorans Adams 1954 (Approved Lists 1980)
                   19 Arthrobacter ilicis Collins et al. 1982
                   20 Arthrobacter kerguelensis Gupta et al. 2004
                   21 Arthrobacter koreensis Lee et al. 2003
                   22 Arthrobacter luteolus Wauters et al. 2000
                   23 Arthrobacter methylotrophus Borodina et al. 2002
                   24 Arthrobacter monumenti Heyrman et al. 2005
                   25 Arthrobacter mysorens Nand and Rao 1972 (Approved Lists 1980)
                   26 Arthrobacter nasiphocae Collins et al. 2002
                   27 Arthrobacter nicotianae Giovannozzi-Sermanni 1959 (Approved Lists 1980)
                   28 Arthrobacter nicotinovorans Kodama et al. 1992
                   29 Arthrobacter nitroguajacolicus Kotoučková et al. 2004
                   30 Arthrobacter oxydans Sguros 1954 (Approved Lists 1980)
                   31 Arthrobacter parietis Heyrman et al. 2005
                   32 Arthrobacter pascens Lochhead and Burton 1953 (Approved Lists 1980)
                   33 Arthrobacter pigmenti Heyrman et al. 2005
                   34 Arthrobacter polychromogenes Schippers-Lammertse et al. 1963 (Approved Lists 1980)
                   35 Arthrobacter protophormiae (Lysenko 1959) Stackebrandt et al. 1984
                   36 Arthrobacter psychrolactophilus Loveland-Curtze et al. 2000
                   37 Arthrobacter psychrophenolicus Margesin et al. 2004
                   38 Arthrobacter ramosus Jensen 1960 (Approved Lists 1980)
                   39 Arthrobacter rhombi Osorio et al. 1999
                   40 Arthrobacter roseus Reddy et al. 2002
                   41 Arthrobacter russicus Li et al. 2004
                   42 Arthrobacter scleromae Huang et al. 2005
                   43 Arthrobacter stackebrandtii Tvrzová et al. 2005
                   44 Arthrobacter sulfonivorans Borodina et al. 2002
                   45 Arthrobacter sulfureus Stackebrandt et al. 1984
                   46 Arthrobacter tecti Heyrman et al. 2005
                   47 Arthrobacter tumbae Heyrman et al. 2005
                   48 Arthrobacter uratoxydans Stackebrandt et al. 1984
                   49 Arthrobacter ureafaciens (Krebs and Eggleston 1939) Clark 1955 (Approved Lists 1980)
                   50 Arthrobacter viscosus Gasdorf et al. 1965 (Approved Lists 1980)
                   51 Arthrobacter woluwensis Funke et al. 1997