Children (7 direct children, 32367 direct and indirect children):
Neogastropoda
(tree size 32125)
Pterotracheoidea
(tree size 125)
Ptenoglossa
(tree size 101)
Coelostylinidae
(tree size 6)
Maturifusidae
(tree size 1)
Pommerozygiidae
(tree size 2)
Settsassiidae