Children (16 direct children, 811 direct and indirect children):
Echinorhynchidae
(tree size 230)
Cavisomidae
(tree size 42)
Heteracanthocephalidae
(tree size 20)
Transvenidae
(tree size 8)
Diplosentidae
(tree size 30)
Rhadinorhynchidae
(tree size 227)
Pomphorhynchidae
(tree size 68)
Illiosentidae
(tree size 79)
Arhythmacanthidae
(tree size 65)
Fessisentidae
(tree size 6)
Hypoechinorhynchidae
(tree size 8)
Isthmosacanthidae
(tree size 2)
Gymnorhadinorhynchidae
(tree size 3)
Gymnorhadinorhynchus
Sauracanthorhynchidae
(tree size 2)
Cavisomatidae
(tree size 3)
Spinulacorpidae
(tree size 2)