†subphylum Protocephalorhynca Adrianov and Malakhov 1995
Parent taxon: Cephalorhyncha according to D. I. Gravestock et al. 2001
Sister taxa: Kinorhyncha, Loricifera, Priapula
Subtaxa: none
Parent taxon: Cephalorhyncha according to D. I. Gravestock et al. 2001
Sister taxa: Kinorhyncha, Loricifera, Priapula
Subtaxa: none