Children (31 direct children, 1731 direct and indirect children):
Mazocraeidae
(tree size 144)
Protomicrocotylidae
(tree size 42)
Heteraxinidae
(tree size 98)
Hexabothriidae
(tree size 109)
Diclybothriidae
(tree size 6)
Discocotylidae
(tree size 64)
Hexostomatidae
(tree size 31)
Mazocraeidea
(tree size 716)
Diclidophoridae
(tree size 257)
Axinidae
(tree size 84)
Pyragraphoridae
(tree size 4)
Sphyranuridae
(tree size 3)
Cemocotylidae
(tree size 12)
Oligonchoinea
(tree size 6)
Polystomatoinea
Dactylocotylidae
(tree size 2)
Aviellidae
(tree size 2)
Allomicrocotylidae
(tree size 3)
Pterinotrematidae
(tree size 7)
Megalonchidae
(tree size 2)
Anchorophoridae
(tree size 2)
Heteromicrocotylidae
(tree size 13)
Diclidophoroidea
Diplozooidea
Avielloidea
Megalonchoidea
Polystomatoidea
Microcotyloidea
Chimaericoloidea
Chimaericolidea
(tree size 8)
Polystomatidea
(tree size 85)