living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Prokaryotae see Superkingdom Prokarya
     Kingdom Monera Haeckel 1866 see Domain Bacteria Woese et al. 1990
       Division Bacteria (Haeckel 1894) see Domain Bacteria Woese et al. 1990
         "Mycoplasmas" see Order Mycoplasmatales Freundt 1955 (Approved Lists 1980)
           Class Mollicutes Edward and Freundt 1967 (Approved Lists 1980)
             Order Mycoplasmatales Freundt 1955 (Approved Lists 1980)
               Family Spiroplasmataceae (ex Skripal' 1974) Skripal' 1983
                 Genus Spiroplasma Saglio et al. 1973 (Approved Lists 1980)
                   Spiroplasma citri Saglio et al. 1973 (Approved Lists 1980)