Children (7 direct children, 2004 direct and indirect children):
Cycloneritimorpha
(tree size 1251)
Cycloneritida
Helicinidae
(tree size 738)
Cyrtoneritimorpha
(tree size 6)
Pragoscutulidae
Neritoida
(tree size 1)
Nerrhenidae
Palaeotrochoidea
(tree size 1)