| Referens | Madeira, P., A. Kroh, R. Cordeiro, R. Meireles and S.P. Avila, 2011 The fossil echinoids of Santa Maria Island, Azores (Northern Atlantic Ocean). Acta Geologica Polonica 61(3):243-264 |
| Ref. | 106593 Madeira, P., A. Kroh, R. Cordeiro, R. Meireles and S.P. Avila, 2011 |
| Sida | 250 |
| Named Used as Valid | Sphaerechinus granularis |
| Observationsplats | |
| Distribution | Eastern Atlantic and the Mediterranean. |