Metazoa Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758 1 [Phylum] Ctenophora Eschscholtz, 1829 - comb jellies 2.1 [Phylum] Porifera Grant, 1836 - sponges 2.2 Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004