[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 Escherichia Castellani and Chalmers 1919 (Approved Lists 1980)
               1 Escherichia coli (Migula 1895) Castellani and Chalmers 1919 (Approved Lists 1980)
               2 Escherichia albertii Huys et al. 2003
               3 Escherichia blattae Burgess et al. 1973 (Approved Lists 1980)
               4 Escherichia fergusonii Farmer et al. 1985
               5 Escherichia hermannii Brenner et al. 1983
               6 Escherichia vulneris Brenner et al. 1983