Kingdom Protozoa Goldfuss, 1818 - protozoa
   ?Phylum Apusozoa Cavalier-Smith, 1997 see Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
     1 Class Diphyllatea Cavalier-Smith, 2003
     2 Class Thecomonadea Cavalier-Smith, 1993