Family
Tetralobulidae Ulrich et Cooper, 1936
List of species
1. Tetralobula peregrina Popov, Egerquist et Zuykov, 2005 | Billingen Stage
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Rhynchonelliformea |
| Class | Rhynchonellata |
| Order | Pentamerida |
| Suborder | Syntrophiidina |
| Superfamily | Porambonitoidea |
| Family | Porambonitidae |
| Tetralobulidae | |
| Subfamily | Tetralobulinae |