Kingdom Animalia Linnaeus, 1758 - animals
Phylum Mollusca Linnaeus, 1758 - molluscs
Subphylum Diasoma Runnegar & Pojeta Jr., 1974
see Phylum Mollusca Linnaeus, 1758
Class Pelecypoda Goldfuss, 1820
see Class Bivalvia Linnaeus, 1758
Subclass Isofilibranchia Iredale, 1939
see Superorder Isofilibranchia Iredale, 1939
Genus †Fordilla Barrande, 1881
†Fordilla sibirica Krasilova, 1977