living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Prokaryotae see Superkingdom Prokarya
     Kingdom Monera Haeckel 1866 see Domain Bacteria Woese et al. 1990
       Division Bacteria (Haeckel 1894) see Domain Bacteria Woese et al. 1990
         "Gram-negative facultatively anaerobic rods"
           Family Enterobacteriaceae Rahn 1937 (Approved Lists 1980)
             Genus Yersinia van Loghem 1944 (Approved Lists 1980)
               Yersinia pestis (Lehmann and Neumann 1896) van Loghem 1944 (Approved Lists 1980)