Genus
Rhynobolus Hall, 1871
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Craniiformea |
| Class | Craniata |
| Order | Trimerellida |
| Family | Trimerellidae |
| Subfamily | Gasconsia |
| Genus | Dinobolus |
| Eodinobolus | |
| Monomerella | |
| Rhynobolus | |
| Trimerella |