Children (6 direct children, 93 direct and indirect children):
Phreatoicidae
(tree size 64)
Hypsimetopidae
(tree size 11)
Crenisopus
(tree size 1)
Hypsimetopodidae
(tree size 2)
Amphisopodidae
(tree size 6)
Palaeophreatoicidae
(tree size 3)