Family Pleurotomariidae Swainson, 1840 (Gastropoda, Archaeogastropoda) from the Bohemian Cretaceous Basin. Václav Ziegler 1983 | volume 39 | issue 4 | pages 255–291 PDF
Family Serpulidae (Polychaeta, Sedentaria) from the Bohemian Cretaceous Basin. Václav Ziegler 1983 | volume 39 | issue 4 | pages 213–254 PDF