prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
   Domain "Bacteria" Woese et al. 1990
     Phylum "Proteobacteria" Garrity et al. 2005 see Superphylum Proteobacteria Craig et al. 2010
       Class Betaproteobacteria Garrity et al. 2006
         Order Burkholderiales Garrity et al. 2006
           Family Alcaligenaceae De Ley et al. 1986
             01 Genus Achromobacter Yabuuchi and Yano 1981
             02 Genus Advenella Coenye et al. 2005
             03 Genus Alcaligenes Castellani and Chalmers 1919 (Approved Lists 1980)
             04 Genus Azohydromonas Xie and Yokota 2005
             05 Genus Bordetella Moreno-López 1952 (Approved Lists 1980)
             06 Genus Brackiella Willems et al. 2002
             07 Genus Candidimonas Vaz-Moreira et al. 2011
             08 Genus Castellaniella Kämpfer et al. 2006
             09 Genus Derxia Jensen et al. 1960 (Approved Lists 1980)
             10 Genus Eoetvoesia Felföldi et al. 2014, nom. illeg.
             11 Genus Kerstersia Coenye et al. 2003
             12 Genus Oligella Rossau et al. 1987
             13 Genus Paenalcaligenes Kämpfer et al. 2010
             14 Genus Paralcaligenes Kim et al. 2011
             15 Genus Parapusillimonas Kim et al. 2010
             16 Genus Pelistega Vandamme et al. 1998
             17 Genus Pigmentiphaga Blümel et al. 2001
             18 Genus Pusillimonas Stolz et al. 2005
             19 Genus Taylorella Sugimoto et al. 1984
             20 Genus Tetrathiobacter Ghosh et al. 2005 see Genus Advenella Coenye et al. 2005
             21 Genus Verticia Vandamme et al. 2015