Cladogram of Class Monogenea, down to Order level [1][2] .
Monocotylidea
Capsalidea
Lagarocotylidea
Montchadskyellidea
Gyrodactylidea
Dactylogyridea
Polystomatidea
Chimaericolidea
Diclybothriidea
Mazocraeidea