prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
   Domain "Bacteria" Woese et al. 1990
     Phylum "Verrucomicrobia" Hedlund 2011
       Class "Spartobacteria" Sangwan et al. 2004 [monotypic]
         1 Genus Terrimicrobium Qiu et al. 2014