Metazoa Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758 Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004 1.1 [Phylum] Placozoa Grell, 1971 1.2 [Phylum] Cnidaria Hatschek, 1888 - cnidarians 2 Bilateria Hatschek, 1888 - bilaterians see Subkingdom Bilateria Hatschek, 1888