Kroh, A.; Mooi, R. (2021). World Echinoidea Database.
Radiocyphus Cotteau, 1891 †. Accessed through: Marine Species Traits editorial board (2021) Marine Species Traits at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=738751 on 2024-07-18
Marine Species Traits editorial board (2024). Marine Species Traits.
Radiocyphus Cotteau, 1891 †. Accessed at: https://marinespecies.org/traits./aphia.php?p=taxdetails&id=738751 on 2024-07-18