Martinez-Soares, P.; Roux, M.; Giusberti, L.; Gatto, R.; Eléaume, M.; Améziane, N. New Eocene Species of the Crinoid Genera Holopus and Cyathidium (Cyrtocrinida: Holopodidae) from North-Eastern Italy. Zootaxa 2024, 5541, 401-437.