Bigyra Cavalier-Smith, 1998
Subphylum Opalozoa Cavalier-Smith, 1992
Infraphylum Placidozoa Cavalier-Smith, 2013
Superclass Wobblata Cavalier-Smith, 2013 [paraphyletic]
Class Opalomonadea Cavalier-Smith, 2013
?Genus Quasibodo Bernard, Simpson & Patterson, 2000 [monotypic]
1 Quasibodo loughtoni Cavalier-Smith & Scoble, 2013
see Quasibodo laughtoni Bernard, Simpson & Patterson, 2000