Genus
Siphonobolus Havlíček, 1982
Classification
| Organism group | Biota |
| Domain | Eukaryota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Linguliformea |
| Class | Lingulata |
| Order | Siphonotretida |
| Superfamily | Siphonotretoidea |
| Family | Siphonotretidae |
| Genus | Acanthambonia |
| Alichovia | |
| Eosiphonotreta | |
| Gorchakovia | |
| Helmersenia | |
| Mesotreta | |
| Nushbiella | |
| Schizambon | |
| Siphonobolus | |
| Siphonotreta | |
| Siphonotretella |