Kingdom [Animalia] Linnaeus, 1758 - animals Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758 Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910 Subdivision Bilateralia Phylum Asc-helminthes Class Rotatoria Ehrenberg, 1838 see Phylum Rotifera Cuvier, 1798 Subclass Seisonidea see Class Seisonidea Order Seisonida see Order Seisonacea Wesenberg-Lund, 1899 1 Genus Seison Grube, 1859