Kingdom Protozoa Goldfuss, 1818 - protozoa
?Phylum Apusozoa Cavalier-Smith, 1997
see Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
Class Diphyllatea Cavalier-Smith, 2003
Order Diphylleida Cavalier-Smith, 1993
Family Diphylleidae Cavalier-Smith, 1993
Genus Diphylleia Massart, 1920