Petronio, C.; Marcolini, F. 2013. Mammal biochronology at the end of Late Villafranchian (Early Pleistocene) – Pirro Faunal Unit.
Palaeontographica, Abt. A, Palaeozoology – Stratigraphy, E. Schweizerbart’sche Verlagsbuchhandlung, Stuttgart; 298 (1-6): 183-191, 4 figs, 1 tab.