Children (8 direct children, 133 direct and indirect children):
Pneumodermatidae
(tree size 50)
Hermaeidae
(tree size 8)
Clionoidea
(tree size 33)
Cliopsidae
(tree size 6)
Hydromyloidea
Laginiopsidae
(tree size 2)
Thliptodontidae
(tree size 20)
Hydromylidae
(tree size 6)