[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum "Proteobacteria" Garrity et al. 2005 see Superphylum Proteobacteria Craig et al. 2010
       Class Gammaproteobacteria Garrity et al. 2005
         Order "Enterobacteriales" Garrity and Holt 2001 nom. nud.
           Family Enterobacteriaceae Rahn 1937 (Approved Lists 1980)
             Genus Obesumbacterium Shimwell 1963 (Approved Lists 1980)
               Obesumbacterium proteus (Shimwell and Grimes 1936) Shimwell 1963 (Approved Lists 1980)