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 "Verrucomicrobia" Hedlund 2012 stat. inval. see Phylum Verrucomicrobiota Hedlund 2021
       Class Opitutae Choo et al. 2007
         1 Order Opitutales Choo et al. 2007 [monotypic]
         2 Order Puniceicoccales Choo et al. 2007 [monotypic]