Cercozoa Cavalier-Smith, 1998 Pansomonadida Vickerman, 2005 Superfamily Sainouroidea T. Cavalier-Smith et al., 2009 see Order Sainouroida Family Helkesimastigidae Cavalier-Smith, 2009 Genus Helkesimastix Woodcock & Lapage, 1914 1 Helkesimastix faecicola Woodcock & Lapage, 1914 2 Helkesimastix major 3 Helkesimastix marina T. Cavalier-Smith et al., 2009