Grade Metazoa - multicellular animals see Kingdom Animalia Linnaeus, 1758 1 Grade Mesozoa van Beneden, 1876 see Phylum Mesozoa van Beneden, 1876 2 Grade Parazoa (Sollas, 1884) see Phylum Porifera Grant, 1836 3 Grade Eumetazoa - eumetazoans see [unranked] Eumetazoa Bütschli, 1910