Kroh, A.; Mooi, R. (2024). World Echinoidea Database. Proterocidaris de Koninck, 1882 †. Accessed at: https://marinespecies.org/Echinoidea/aphia.php?p=taxdetails&id=703973 on 2024-09-14
original description(ofEupholidocidaris Kier, 1956 †)Kier, P. M. 1956. A New Genus of Echinoid from the Palaeozoic of Ireland. Geological Magazine 93, 15-17.[details]