Rickettsiella popilliae (Dutky and Gooden 1952) Philip 1956 (Approved Lists 1980) Rickettsiella popilliae (Dutky and Gooden 1952) Philip 1956 (Approved Lists 1980) Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Proteobacteria (sic) Garrity et al. 2021 Pseudomonadota corrig. Garrity et al. 2021 Alphaproteobacteriota (sic) Garrity et al. 2021 Gammaproteobacteria Garrity et al. 2005 emend. Williams and Kelly 2013 Legionellales Garrity et al. 2005 emend. Saini and Gupta 2021 Coxiellaceae Garrity et al. 2005 Rickettsiella Philip 1956 (Approved Lists 1980) emend. Saini and Gupta 2021 Rickettsiella popilliae (Dutky and Gooden 1952) Philip 1956 (Approved Lists 1980) Rickettsiella Philip 1956 (Approved Lists 1980) emend. Saini and Gupta 2021 Rickettsiella chironomi (ex Weiser 1963) Weiss et al. 1984 Rickettsiella grylli (ex Vago and Martoja 1963) Weiss et al. 1984 Rickettsiella stethorae Hall and Badgley 1957 (Approved Lists 1980) Rickettsiella isopodorum Kleespies et al. 2014 Rickettsiella viridis Tsuchida et al. 2014 Rickettsiella massiliensis (Mediannikov et al. 2011) Saini and Gupta 2021 Rickettsiella popilliae (Dutky and Gooden 1952) Philip 1956 (Approved Lists 1980) Philip C.B. Comments on the classification of the order Rickettsiales 1956 2 3 261 270 Canadian Journal of Microbiology Can J Microbiol 0008-4166 1480-3275 10.1139/m56-030 13316619 Dutky S.R. Gooden E.L. Coxiella popilliae, n. sp., a rickettsia causing blue disease of Japanese beetle larvae. 1952 63 743 750 Journal of Bacteriology J Bacteriol 0021-9193 1098-5530 14938336 Philip C.B. Comments on the classification of the order Rickettsiales 1956 2 3 261 270 Canadian Journal of Microbiology Can J Microbiol 0008-4166 1480-3275 10.1139/m56-030 13316619 Skerman V.B.D. McGowan V. Sneath P.H.A. Approved Lists of Bacterial Names 1980 30 1 225 420 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-30-1-225