Children (6 direct children, 2559 direct and indirect children):
Gulgastruroidea
(tree size 3)
Isotogastruroidea
(tree size 9)
Onychiuroidea
(tree size 833)
Hypogastruroidea
(tree size 777)
Neanuroidea
(tree size 925)
Poduroidea
(tree size 6)