prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
   Domain "Bacteria" Woese et al. 1990
     Phylum "Tenericutes" Murray 1984 [monotypic] see Phylum Firmicutes corrig. Gibbons and Murray 1978 (Approved Lists 1980)
       Class Mollicutes Edward and Freundt 1967 (Approved Lists 1980)
         Order Mycoplasmatales Freundt 1955 (Approved Lists 1980) [monotypic]
           Family Mycoplasmataceae Freundt 1955 (Approved Lists 1980)
             1 Genus Eperythrozoon Schilling 1928 (Approved Lists 1980)
             2 Genus Haemobartonella Tyzzer and Weinman 1939 (Approved Lists 1980) see Genus Mycoplasma Nowak 1929 (Approved Lists 1980)
             3 Genus Mycoplasma Nowak 1929 (Approved Lists 1980)
             4 Genus Ureaplasma Shepard et al. 1974 (Approved Lists 1980)