Tectobacter (sic) (ex Preer et al. 1974) Preer and Preer 1982 Tectibacter corrig. (ex Preer et al. 1974) Preer and Preer 1982 Tectobacter (sic) (ex Preer et al. 1974) Preer and Preer 1982 Tectibacter vulgaris (ex Preer et al. 1974) Preer and Preer 1982 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 Rickettsiales Gieszczykiewicz 1939 (Approved Lists 1980) emend. Dumler et al. 2001 Incertae sedis 4 Garrity et al. 2007 Tectibacter corrig. (ex Preer et al. 1974) Preer and Preer 1982 Tectobacter (sic) (ex Preer et al. 1974) Preer and Preer 1982 Incertae sedis 4 Garrity et al. 2007 Pseudocaedibacter Quackenbush 1982 Symbiotes Philip 1956 emend. Brooks 1974 (Approved Lists 1980) Caedobacter (sic) (ex Preer et al. 1974) Preer and Preer 1982 emend. Schrallhammer et al. 2018 Caedibacter corrig. (ex Preer et al. 1974) Preer and Preer 1982 emend. Schrallhammer et al. 2018 Odyssella Birtles et al. 2000 Lyticum (ex Preer et al. 1974) Preer and Preer 1982 Tectibacter vulgaris (ex Preer et al. 1974) Preer and Preer 1982 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 Garrity G.M. Lilburn T.G. Cole J.R. Harrison S.H. Euzeby J. Tindall B.J. Part 3 – The Bacteria: Phylum Proteobacteria, Class Alphaproteobacteria 2007 52 111 The Taxonomic Outline of Bacteria and Archaea Release 7.7 Michigan State University Board of Trustees 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 Preer J.R. Preer L.B. Jurand A. Kappa and other endosymbionts in Paramecium aurelia 1974 38 2 113 163 Bacteriological Reviews Bacteriol Rev 0005-3678 1098-5557 4599970