In this study, trace fossils of the Ceylan Formation (Late Eocene) in the area NW of Fındıklı village and on the coast of the Ece Bay the Gelibolu Peninsula are identified for the first time. They occur in gray siltstones and mudstones intercalated with thin-bedded, parallel and ripple laminated sandstones, which were deposited on a basin plain in proximilt of a slopes in the Thrace Basin. The Late Eocene Ceylan Formation includes pre-depositionl (Belorhaphe zickzack, Desmograpton isp., Helicolithus ramosus, Helminthorhaphe flexuosa, Paleodictyon majus, Paleodictyon minimum, Paleodictyon strozzii, Saerichnites isp., Urohelminthoida appendiculata) and post-depositional (Phycosiphon incertum, Spongeliomorpha oraviense, Trichichnus isp., Planolites isp., Ophiomorpha isp., Ophiomorpha annulata, Scolicia isp., Scolicia prisca, and Thalassinoides isp.) trace fossils. This trace fossil assemblage is typical of the Nereites ichnofacies (Paleodictyon ichnosubfacies), which characterize deep-sea, thin bedded turbididitic sediments oxygenated sea floor.