Alphabetical Listing of Families within this Taxa Group:

family     Astropectinidae		T4032519
family     Ctenodiscidae		T4023318
family     Goniopectinidae		T4023457
family     Luidiidae		T4009143
family     Porcellanasteridae		T4023319
family     Pseudarchasteridae		T4023543
family     Radiasteridae		T4023320