Productidina
Productidina is a suborder of brachiopods containing the families:
- Superfamily Productoidea
- * Family Productellidae
- * Family Productidae
- Superfamily Echinoconchoidea
- * Family Echinoconchidae
- * Family Sentosiidae
- Superfamily Linoproductoidea
- * Family Linoproductidae
- * Family Monticuliferidae
- * Family Shrenkiellidae