Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Domain Bacteria Woese et al. 2024 Kingdom Pseudomonadati (Gibbons and Murray 1978) Oren and Göker 2024 Phylum Pseudomonadotaᵀ Garrity et al. 2021 Class Alphaproteobacteria Garrity et al. 2006 Order Hyphomicrobiales Douglas 1957 (Approved Lists 1980) 01 Genus Flaviflagellibacter Dong et al. 2019, incertae sedis 02 Genus Terrihabitans Nakai et al. 2022, incertae sedis 03 Genus "Nordella" La Scola et al. 2004 nom. inval., incertae sedis 04 Family Acuticoccaceae Lai et al. 2019 05 Family Aestuariivirgaceae Li et al. 2019 06 Family Afifellaceae Hördt et al. 2020 07 Family Ahrensiaceae Hördt et al. 2020 08 Family Alloboseaceae Deshmukh and Oren 2026 [monotypic] 09 Family Alsobacteraceae Sun et al. 2018 [monotypic] 10 Family Ancalomicrobiaceae Dahal et al. 2018 11 Family Aurantimonadaceae Hördt et al. 2020 12 Family Bartonellaceae Gieszczykiewicz 1939 (Approved Lists 1980) 13 Family Beijerinckiaceae Garrity et al. 2006 14 Family Blastochloridaceae Hördt et al. 2020 [monotypic] 15 Family Chelatococcaceae Dedysh et al. 2016 16 Family Cohaesibacteraceae Hwang and Cho 2008 [monotypic] 17 Family Coralliovaceae Li et al. 2024 [monotypic] 18 Family Devosiaceae Hördt et al. 2020 19 Family Hyphomicrobiaceaeᵀ Babudieri 1950 (Approved Lists 1980) 20 Family Kaistiaceae Hördt et al. 2020 21 Family Lichenibacteriaceae Pankratov et al. 2020 [monotypic] 22 Family Lichenihabitantaceae Noh et al. 2019 23 Family Methylobacteriaceae Garrity et al. 2006 24 Family Methylocystaceae Bowman 2006 25 Family Methylopilaceae diCenzo et al. 2024 26 Family Nitrobacteraceae corrig. Buchanan 1917 (Approved Lists 1980) 27 Family Parvibaculaceae Hördt et al. 2020 28 Family Phreatobacteraceae Hördt et al. 2020 29 Family Pleomorphomonadaceae Hördt et al. 2020 30 Family Rhabdaerophilaceae Ming et al. 2020 [monotypic] 31 Family Rhizobiaceae Conn 1938 (Approved Lists 1980) 32 Family Rhodobiaceae Garrity et al. 2006 [monotypic] 33 Family Rhodoblastaceae diCenzo et al. 2024 [monotypic] 34 Family Rhodoligotrophaceae diCenzo et al. 2024 35 Family Roseiarcaceae Kulichevskaya et al. 2014 36 Family Salaquimonadaceae diCenzo et al. 2024 [monotypic] 37 Family Salinarimonadaceae Cole et al. 2018 38 Family Sanyastnellaceae Li et al. 2024 39 Family Segnochrobactraceae Akter et al. 2020 40 Family Stappiaceae Hördt et al. 2020 41 Family Tepidamorphaceae Hördt et al. 2020 42 Family Terrirubraceae Guo et al. 2024 [monotypic] 43 Family Xanthobacteraceae Lee et al. 2005 44 Family "Propylenellaceae" Liu et al. 2021 nom. inval. [monotypic] 45 Family "Thermopetrobacteraceae" Laroche et al. 2022 nom. inval. [monotypic]