Supergroup Rhizaria Cavalier-Smith, 2002 see Infrakingdom Rhizaria Cavalier-Smith, 2002 Phylum Foraminifera d'Orbigny, 1826 see Subphylum Foraminifera d'Orbigny, 1826 Class Spirillinata Mikhalevich, 1992 Subclass Spirillinana Mikhalevich, 1992 Superorder Involutinoida Hohenegger & Piller, 1977 1 Order Involutinida Hohenegger & Piller, 1977 2 Order Hottingerellida Mikhalevich, 1993 [monotypic]