Family
Hemiasteridae Clark, 1917
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Echinodermata |
| Subphylum | Echinozoa |
| Class | Echinoidea |
| Order | Spatangoida |
| Family | Hemiasteridae |
| Genus | Hemiaster |
| Family | Micrasteridae |
See also
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Echinodermata |
| Subphylum | Echinozoa |
| Class | Echinoidea |
| Order | Spatangoida |
| Family | Hemiasteridae |
| Genus | Hemiaster |
| Family | Micrasteridae |