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 Rhizobiales Kuykendall 2006 Family Hyphomicrobiaceae Babudieri 1950 (Approved Lists 1980) Genus Methyloterrigena Kim et al. 2016 Genus Paradevosia Geng et al. 2015 01 Genus Hyphomicrobiumᵀ Stutzer and Hartleb 1898 (Approved Lists 1980) 02 Genus Ancalomicrobium Staley 1968 (Approved Lists 1980) [monotypic] 03 Genus Angulomicrobium Vasil'eva et al. 1986 04 Genus Aquabacter Irgens et al. 1993 [monotypic] 05 Genus Blastochloris Hiraishi 1997 06 Genus Cucumibacter Hwang and Cho 2008 [monotypic] 07 Genus Devosia Nakagawa et al. 1996 08 Genus Dichotomicrobium Hirsch and Hoffman 1989 [monotypic] 09 Genus Filomicrobium Schlesner 1988 10 Genus Gemmiger Gossling and Moore 1975 (Approved Lists 1980) [monotypic] 11 Genus Pelagibacterium Xu et al. 2011 12 Genus Maritalea Hwang et al. 2009 13 Genus Methylorhabdus Doronina et al. 1996 [monotypic] 14 Genus Pedomicrobium Aristovskaya 1961 (Approved Lists 1980) 15 Genus Prosthecomicrobium Staley 1968 (Approved Lists 1980) 16 Genus Rhodomicrobium Duchow and Douglas 1949 (Approved Lists 1980) [monotypic] 17 Genus Rhodoplanes Hiraishi and Ueda 1994 18 Genus Seliberia Aristovskaya and Parinkina 1963 (Approved Lists 1980) [monotypic]