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
         "Budding and/or appendaged bacteria" see Class Alphaproteobacteria Garrity and Holt 2001 nom. nud.
           "Caulobacters" see Family Caulobacteraceae Henrici and Johnson 1935 (Approved Lists 1980)
             1 Genus Caulobacter Henrici and Johnson 1935 (Approved Lists 1980)
             2 Genus Prosthecobacter (ex Staley et al. 1976) Staley et al. 1980
             3 Genus Asticcacaulis Poindexter 1964 (Approved Lists 1980)