| Kingdom | Phylum | Class | Order |
|---|---|---|---|
| Animalia | Echinodermata | Echinoidea | Cassiduloida |
| Rank | Scientific name | Taxonomic status |
|---|---|---|
| genus | Breynella | accepted |
| genus | Hypsopygaster | accepted |
| genus | Oolopygus d'Orbigny, 1857 | accepted |
| genus | Pliolampas Pomel, 1888 | accepted |
Pliolampadidae. GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via biodiversity.aq on 2021-09-08.