Bigyra Cavalier-Smith, 1998 Subphylum Opalozoa Cavalier-Smith, 1992 Infraphylum Bikosia Cavalier-Smith, 2013 [monotypic] Class Bikosea Cavalier-Smith, 2013 Subclass Bicosidia Cavalier-Smith, 2006 Superorder Cyathobodoniae Cavalier-Smith, 1993 Order Pseudodendromonadida Hibberd, 1985 Family Siluaniidae Karpov, 1998 Genus Adriamonas Verhagen et al., 1994