Phylum Foraminifera d'Orbigny, 1826 see Subphylum Foraminifera d'Orbigny, 1826 1 Class Astrorhizata Saidova, 1981 2 Class Spirillinata Mikhalevich, 1992 3 Class Miliolata Saidova, 1981 - porcelaneous foraminifers 4 Class Nodosariata Mikhalevich, 1992 5 Class Rotaliata Mikhalevich, 1980 - hyaline foraminifers