metazoans Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758 Bilateria Hatschek, 1888 - bilaterians see Subkingdom Bilateria Hatschek, 1888 Phylum Arthropoda Siebold, 1848 - arthropods Class †Paratrilobita 1 ?Genus †[Bomakellia] Fedonkin, 1990