Superregnum: Eukaryota Cladus: Unikonta Cladus: Opisthokonta Cladus: Holozoa Kingdom: Animalia Subregnum: Eumetazoa Cladus: ParaHoxozoa Cladus: Bilateria Cladus: Nephrozoa Cladus: Protostomia Cladus: Spiralia Cladus: Lophotrochozoa Phylum: Annelida Classis: Polychaeta Subclassis: Palpata Ordo: Aciculata Subordo: Phyllodocida
Familia: Syllidae Genus: Species: R. kingghidorahi