Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Nephrozoa (Eubilateria)
Protostome (Protostomia)
Spiralia (Spiralians)
Lophotrochozoa
Sipuncula (Sipunculid worms)
Sipunculidea
Golfingiiformes
Phascoliidae
Onchnesoma
Onchnesoma steenstrupii (2810231)
Children (2 direct children, 2 direct and indirect children):
Onchnesoma steenstrupii nudum
Onchnesoma steenstrupii steenstrupii