Didymozoidae
(tree size 448)
Accacoeliidae
(tree size 48)
Azygiidae
(tree size 57)
Bivesiculidae
(tree size 33)
Hirudinellidae
(tree size 13)
Ptychogonimidae
(tree size 6)
Lampritrematidae
(tree size 4)
Aphanhysteridae
(tree size 2)
Azygiata