Kingdom Protozoa Goldfuss, 1818 - protozoa
   ?Phylum Apusozoa Cavalier-Smith, 1997 see Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
     Class Thecomonadea Cavalier-Smith, 1993
       Order Apusomonadida Karpov & Mylnikov, 1989
         1 Genus Amastigomonas De Saedeleer, 1931
         2 Genus Apusomonas Aléxéieff, 1924