Phylum Cephalorhyncha
Parent taxon: Ecdysozoa according to J. Zrzavy et al. 1998
Sister taxa: Cycloneuralia, Nematozoa, Panarthropoda, Scalidophora
Subtaxa: Protocephalorhynca
Parent taxon: Ecdysozoa according to J. Zrzavy et al. 1998
Sister taxa: Cycloneuralia, Nematozoa, Panarthropoda, Scalidophora
Subtaxa: Protocephalorhynca