Holospora (ex Hafkine 1890) Gromov and Ossipov 1981 Holospora undulata (ex Hafkine 1890) Gromov and Ossipov 1981 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 Alphaproteobacteria Garrity et al. 2006 Holosporales Szokoli et al. 2020 Holosporaceae Görtz and Schmidt 2006 emend. Szokoli et al. 2016 Holospora (ex Hafkine 1890) Gromov and Ossipov 1981 Holosporaceae Görtz and Schmidt 2006 emend. Szokoli et al. 2016 Goertzia corrig. Boscaro et al. 2013 Gortzia (sic) Boscaro et al. 2013 Paraholospora Eschbach et al. 2009 Hepatobacter Nunan et al. 2013 Bealeia Szokoli et al. 2016 Hafkinia Fokin et al. 2019 Hydrogenosomobacter Takeshita et al. 2019 Cytomitobacter Tashyreva et al. 2018 Nesciobacter (sic) George et al. 2020 Ignotibacter corrig. George et al. 2020 Fujishimia Boscaro et al. 2019 Holospora caryophila (ex Preer et al. 1974) Preer and Preer 1982 Holospora undulata (ex Hafkine 1890) Gromov and Ossipov 1981 Holospora elegans (ex Hafkine 1890) Preer and Preer 1982 Holospora obtusa (ex Hafkine 1890) Gromov and Ossipov 1981 Holospora parva Lanzoni et al. 2016 Görtz H.D. Schmidt H.J. Garrity G.M. Brenner D.J. Krieg N.R. Staley J.T. Family III. Holosporaceae fam. nov. 2005 2, Part C 2 146 149 Bergey's Manual of Systematic Bacteriology Springer New York 0387241450 Preer J.R. Preer L.B. Revival of names of protozoan endosymbionts and proposal of Holospora caryophila nom. nov. 1982 32 1 140 141 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-32-1-140 Lanzoni O. Fokin S.I. Lebedeva N. Migunova A. Petroni G. Potekhin A. Rare Freshwater Ciliate Paramecium chlorelligerum Kahl, 1935 and Its Macronuclear Symbiotic Bacterium "Candidatus Holospora parva". 2016 11 12 e0167928 e0167928 PLoS One 1932-6203 10.1371/journal.pone.0167928 27992463 Gromov B.V. Ossipov D.V. Holospora (ex Hafkine 1890) nom. rev., a genus of bacteria inhabiting the nuclei of paramecia. 1981 31 3 348 352 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-31-3-348