DONOVAN, Desmond T; SURLYK, Finn. Lower Jurassic (Pliensbachian) ammonites from Bornholm, Baltic Sea, Denmark. GEUS Bulletin, Copenhagen, Denmark, v. 1, p. 555–583, 2003. DOI: 10.34194/geusb.v1.4684. Disponível em: https://geusbulletin.org/index.php/geusb/article/view/4684. Acesso em: 24 oct. 2025.