Elicki, O. & Magnus, M. (2012)
Squalicorax kaupi AGASSIZ, 1843, (Chondrichthyes, Lamniformes) and Echinocorys gravesi AGASSIZ &DESOR, 1847, (Echinoidea, Holasteroida) from the late Cretaceous of Bornholm (Denmark). Freiberger Forschungshefte, C542, 55–64