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
| Billingsellida | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Brachiopoda |
| Class: | †Strophomenata |
| Order: | †Billingsellida |
References
edit- ^ Williams, Alwyn; Brunton, C.H.C.; Carlson, S.J.; et al. (1997–2007). Kaesler, Roger L.; Selden, Paul (eds.). Part H, Brachiopoda (Revised). Treatise on Invertebrate Paleontology. Boulder, Colorado; Lawrence, Kansas: Geological Society of America; University of Kansas.
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