Anomocystis Haeckel, 1896 † accepted as Anomalocystites Hall, 1859 † (original description)
Anthocystis Haeckel, 1896 (original description)
Archaeocystis Haeckel, 1896 (original description)
Asterocystis Haeckel, 1896 † (original description)
Baculocystis Haeckel, 1896 † accepted as Baculocystites Barrande, 1887 † (original description)
Cardiocystis Haeckel, 1896 † accepted as Cardiocystites Barrande, 1887 † (original description)
Citrocystis Haeckel, 1896 (original description)
Crinocystis Haeckel, 1896 (original description)
Crystallocystis Haeckel, 1896 (original description)
Decamphora Haeckel, 1896 (original description)
Echinocystis Haeckel, 1896 † accepted as Lysocystites Miller, 1889 † (original description)
Enneacystis Haeckel, 1896 (original description)
Enoplura Haeckel, 1896 † accepted as Enoploura Wetherby, 1879 † (original description)
Eocystis Haeckel, 1896 † (original description)
Heliocystis Haeckel, 1896 † accepted as Heliocrinites Eichwald, 1840 † (original description)
Heliopirum Haeckel, 1896 (original description)
Hexalacystis Haeckel, 1896 (original description)
Lichenocystis Haeckel, 1896 (original description)
Palmacystis Haeckel, 1896 (original description)
Phacocystis Haeckel, 1896 (original description)
Placocystis Haeckel, 1896 † accepted as Placocystites Koninck, 1869 † (original description)
Pomocystis Haeckel, 1896 (original description)
Pomonites Haeckel, 1896 (original description)
Psolocystis Haeckel, 1896 (original description)
Staurocystis Haeckel, 1896 † (original description)