Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Bivalvia Linnaeus, 1758 - bivalves
     Subclass Heterodonta Neumayr, 1884 see Clade Heterodonta Neumayr, 1884
       Order Chamida see Order Venerida Gray, 1854
         Superfamily Corbiculoidea Gray, 1847 see Superfamily Cyrenoidea Gray, 1840
           Family Pisidiidae Gray, 1857 see Family Sphaeriidae Deshayes, 1855 (1820)
             01 Genus Pisidium Pfeiffer, 1821
             02 Genus Byssanodonta d'Orbigny, 1846
             03 Genus Eupera Bourguignat, 1854
             04 Genus Micranodonta Kuiper, 1965
             05 Genus Sphaerium Scopoli, 1777
             06 Genus Musculium Link, 1807
             07 Genus Pseudocorbicula Dautzenberg, 1908
             08 Genus Sulcastrum Sterki, 1930
             09 Genus Arcteuglesa Pirogov & Starobogatov, 1974
             10 Genus Cingulipisidium Pirogov & Starobogatov, 1974
             11 Genus Conventus Pirogov & Starobogatov, 1974
             12 Genus Costopisidium Pirogov & Starobogatov, 1974
             13 Genus Hiberneuglesa Starobogatov, 1983 see Subgenus Hiberneuglesa Starobogatov, 1983
             14 Genus Parasphaerium Alimov & Starobogatov, 1968
             15 Genus Pulcheleuglesa Starobogatov, 1984
             16 Genus Striaticyclas Starobogatov, 1968
             17 Genus Tetragonocyclas Pirogov & Starobogatov, 1974
             18 Genus Zecyclas Starobogatov, 1968