The report which presents the results of the Workshop Field-trip on “Lower-Middle Pleistocene transition in Italy” was organized by AIQUA and by ICS - Subcommission on Quaternary Stratigraphy - and sponsored by the Earth and Environmental Sciences Department of University “A.Moro” of Bari. The workshop focuses on the presentation and discussion of the main results obtained from multidisciplinary scientific studies carried out on two Italian stratigraphic marine sections candidate to represent the GSSP of Lower-Middle Pleistocene transition (Montalbano Jonico in Basilicata and Valle di Manche in Calabria). A short presentation of a third GSSP candidate (Chiba section in Japan) was also planned. Therefore two significant Lower-Middle Pleistocene lacustrine intrapenninic successions (S.Lorenzo in Sant’Arcangelo Basin in south Italy and Sulmona paleolake basin in central Italy) have been illustrated. The field-trip was organized in a two-day excursion in order to visit the above-mentioned Sections.