Alphabetical Listing of Families within this Taxa Group:

family     Architectonicidae		T4031359
family     Cimidae		T4032502
family     Cornirostridae		T4026742
family     Hyalogyrinidae		T4023286
family     Mathildidae		T4023288
family     Murchisonellidae		T4032543
family     Omalogyridae		T4026727
family     Orbitestellidae		T4026752
family     Rhodopidae		T4026758
family     Valvatidae		T4026933
family     Xylodisculidae		T4023297