prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 stat. inval.
   Domain "Bacteria" Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024
     Phylum "Proteobacteria" Garrity et al. 2005 stat. inval. see Phylum Pseudomonadota Garrity et al. 2021
       Class Deltaproteobacteria Kuever et al. 2006
         Order Myxococcales Tchan et al. 1948 (Approved Lists 1980)
           Suborder Cystobacterineae Reichenbach 2007 see Order Myxococcales Tchan et al. 1948 (Approved Lists 1980)
             Family Cystobacteraceae McCurdy 1970 (Approved Lists 1980) see Family Archangiaceae Jahn 1924 (Approved Lists 1980)
               Genus Stigmatella Berkeley and Curtis 1875 (Approved Lists 1980) nom. illeg.