For this rare Estonioceras, all pieces located in the counterpart were transferred and smaller imperfections were reconstructed. The preperation work was done from both sides, to fully expose the calzistic chambers.
Fossil: Estonioceras
Locality: Erratic from Mecklenburg (Germany)
Formation: Ordovician
Diameter of the fossil: 7 cm
Collection: Stefan Polkowsky
Work required: 8 hours