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 Ammodiscana Mikhalevich, 1980 Order Ammovertellinida Mikhalevich, 1999 Family Ammovertellinidae Saidova, 1981 Subfamily Ammovertellininae Saidova, 1981