DONOVAN, D. T. .; SURLYK, F. . 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: 19 oct. 2021.