Metazoa Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758 Phylum Nemertea Schultze, 1851 - ribbon worms [[Class] Anopla] see Phylum Nemertea Schultze, 1851 1 [[Order] Palaeonemertea Hubrecht, 1879] see Phylum Nemertea Schultze, 1851 2 [[Order] Heteronemertea]