Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Domain Bacteria Woese et al. 1990 [paraphyletic?] Superphylum "Proteobacteria" Craig et al. 2010 Phylum "Alphaproteobacteria" Garrity et al., 2006 [monotypic] Class Alphaproteobacteriaᵀ Garrity et al. 2006 Order Rickettsiales Gieszczykiewicz 1939 (Approved Lists 1980) Family Rickettsiaceae Pinkerton 1936 (Approved Lists 1980) Genus Rickettsiaᵀ da Rocha-Lima 1916 (Approved Lists 1980) 01 Rickettsia aeschlimannii Beati et al. 1997 02 Rickettsia africae Kelly et al. 1996 03 Rickettsia akari Huebner et al. 1946 (Approved Lists 1980) 04 Rickettsia asiatica Fujita et al. 2006 05 Rickettsia australis Philip 1950 (Approved Lists 1980) 06 Rickettsia bellii Philip et al. 1983 07 Rickettsia canadensis corrig. McKiel et al. 1967 (Approved Lists 1980) 08 Rickettsia conorii Brumpt 1932 (Approved Lists 1980) 09 Rickettsia felis Bouyer et al. 2001 10 Rickettsia heilongjiangensis Fournier et al. 2006 11 Rickettsia helvetica Beati et al. 1993 12 Rickettsia honei Stenos et al. 1998 13 Rickettsia japonica Uchida et al. 1992 14 Rickettsia massiliae Beati and Raoult 1993 15 Rickettsia montanensis corrig. (ex Lackman et al. 1965) Weiss and Moulder 1984 16 Rickettsia parkeri Lackman et al. 1965 (Approved Lists 1980) 17 Rickettsia peacockii Niebylski et al. 1997 18 Rickettsia prowazekiiᵀ da Rocha-Lima 1916 (Approved Lists 1980) 19 Rickettsia raoultii Mediannikov et al. 2008 20 Rickettsia rhipicephali (ex Burgdorfer et al. 1978) Weiss and Moulder 1988 21 Rickettsia rickettsii (Wolbach 1919) Brumpt 1922 (Approved Lists 1980) 22 Rickettsia sibirica Zdrodovskii 1948 (Approved Lists 1980) 23 Rickettsia slovaca Sekeyová et al. 1998 24 Rickettsia tamurae Fournier et al. 2006 25 Rickettsia typhi (Wolbach and Todd 1920) Philip 1943 (Approved Lists 1980)