NEW DATA ON THE LOWER PLEISTOCENE (GELASIAN) LIGNITE BEDS OF CASTEL SAN PIETRO (RIETI, CENTRAL ITALY). RIPS [Internet]. 2017 Apr. 13 [cited 2026 Jul. 27];123(2). Available from: https://test-ojs-unimi-it.archicoop.it/index.php/RIPS/article/view/8622