Schistosomatidae
(tree size 67)
Diplostomatidae
(tree size 113)
Spirorchiidae
(tree size 118)
Leucochloridiidae
(tree size 24)
Leucochloridiomorphidae
(tree size 10)
Protrodiplostomatidae
(tree size 9)
Sanguinicolidae
(tree size 93)
Fellodistomatidae
(tree size 156)
Urotrematidae
(tree size 7)
Clinostomatidae
(tree size 38)
Brachylaimidae
(tree size 51)
Clinostomoidea
(tree size 23)
Cyclocoeloidea
(tree size 6)
Gymnophalloidea
(tree size 215)
Schistosomoidea
Bolbocephalodidae
(tree size 2)
Brauninidae
(tree size 2)
Brachylaimata
(tree size 6)