Alphabetical Listing of Families within this Taxa Group:
family     Allodiscocotylidae T4024955
family     Allopyragraphoridae T4072711
family     Axinidae T4072268
family     Bychowskicotylidae T4072712
family     Chauhaneidae T4072713
family     Diclidophoridae T4026853
family     Diplozoidae T4026854
family     Discocotylidae T4026855
family     Gastrocotylidae T4024933
family     Gotocotylidae T4027030
family     Heteraxinidae T4027029
family     Heteromicrocotylidae T4027031
family     Hexostomatidae T4072270
family     Macrovalvitrematidae T4072714
family     Mazocraeidae T4026856
family     Megamicrocotylidae T4072715
family     Microcotylidae T4026857
family     Plectanocotylidae T4026858
family     Protomicrocotylidae T4026859
family     Pyragraphoridae T4026860
family     Thoracocotylidae T4072716