Family
Tulenicornidae Missarzhevsky, 1989
Klassificering
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Hyolitha |
| Order | Hyolithida |
| Family | Amitidae |
| Angusticornidae | |
| Carinolithidae | |
| Crispatellidae | |
| Hyolithidae | |
| Parentilitidae | |
| Slapylitidae | |
| Sulcavitidae | |
| Tulenicornidae |