Uchman, Alfred, and Bruno Rattazz. “A New Resting Trace of Echiuran Worms from the Paleocene Turbiditic Deposits of the Northern Apennines and the Polish Outer Carpathians”. Acta Geologica Polonica, vol. 76, no. 2, May 2026, p. e78, doi:10.24425/agp.2026.158192.