Alphabetical Listing of Families within this Taxa Group:

family     Centrophoridae		T5012893
family     Chlamydoselachidae		T5013297
family     Dalatiidae		T5013307
family     Echinorhinidae		T5013308
family     Etmopteridae		T5013328
family     Hexanchidae		T5013298
family     Oxynotidae		T5013329
family     Pristiophoridae		T5013311
family     Somniosidae		T5013330
family     Squalidae		T5013309
family     Squatinidae		T5012924