Genus
Helokybe Thomas, 1979
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Klassificering
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Subphylum | Trilobita |
| Order | Proetida |
| Suborder | Proetoidea |
| Family | Proetidae |
| Genus | Astroproetus |
| Coniproetus | |
| Cyphoproetus | |
| Hedstroemia (Trilobita) | |
| Helokybe | |
| Prantlia | |
| Proetus | |
| Pulcherproetus | |
| Thebanaspis | |
| Warburgella | |
| Xenocybe |