Children (8 direct children, 401 direct and indirect children):
Gastrodiscidae
(tree size 4)
Notocotylidae
(tree size 124)
Microscaphidiidae
(tree size 62)
Paramphistomatidae
(tree size 54)
Nudacotylidae
(tree size 4)
Brumptidae
(tree size 2)
Opisthotrematidae
(tree size 19)
Cladorchiidae
(tree size 124)