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. 1990 [paraphyletic?] Superphylum "Proteobacteria" Craig et al. 2010 Phylum "Gammaproteobacteria" Garrity et al., 2005 [monotypic] Class Gammaproteobacteriaᵀ Garrity et al. 2005 Order Aeromonadales Martin-Carnahan and Joseph 2005 Family Succinivibrionaceae Hippe et al. 1999 [Genus "Ruminobacter" Sijpesteijn 1949] see Genus Ruminobacter (ex Sijpesteijn 1949) Stackebrandt and Hippe 1987 ["Ruminobacter amylophilum" (sic) (Hamlin and Hungate 1956) Prévot 1966] see Ruminobacter amylophilus (Hamlin and Hungate 1956) Stackebrandt and Hippe 1987