Billingsellida
Billingsellida
Order of marine lamp shells
An order of brachiopods containing the families:[1]
- Suborder Billingsellidina
- Superfamily Billingselloidea
- Family Billingsellidae
- Superfamily Billingselloidea
- Suborder Clitambonitidina
- Superfamily Clitambonitoidea
- Family Clitambonitidae
- Family Gonambonitidae
- Superfamily Polytoechioidea
- Family Polytoechiidae
- Superfamily Clitambonitoidea