Forner i Valls, Enric et al. “Genero berria, Stegasteridae (Echinoidea) Coniaciarreko Euskokantauriar arroko sakoneko faziesekoa: New genus of Stegasteridae (Echinoidea) from the Coniacian deep facies of the Basque-Cantabrian basin”. Nemus. Revista de l’Ateneu de Natura, no. 11, pp. 187-04, https://raco.cat/index.php/Nemus/article/view/391620.