The Jurassic rocks, which lie elsewhere in Europe at depths of 60 to 300 m and are open to the surface only in the vicinity of Papilė, are rich in small animal remains of that time called fossils. The main food of water-dwelling dinosaurs (ichthyosaurs) were belemnites, fragments of their skeletons are often found in the outcrops of Papilė. Shells of ammonites, bivalve molluscs and other molluscs are also found. In total, about 300 Jurassic animal remains and fragments have been discovered and described in Papilė outcrops.