Outcrops of the Miocene (Badenian) deposits are exposed on the northeast slopes of Medvednica Mt., on the road connecting Adamovec and Marija Bistrica. The outcrops represent transgressive sequence, with basal conglomerates at a base of transgressive sequence. Goals of this research were to determine lithology of conglomerate pebbles, statistically describe their size, shape and type properties, to record geological column and determine to which of the Badenian transgressive-regressive cycles investigated deposits correspond. Geological column is composed of the basal conglomerates followed by biogenic and bioclastic carbonate deposits, and marls and argillaceous marls in the upper part. Basal conglomerates are described as polymict, with well rounded, moderately spherical pebbles, deposited possibly in a beach environment. Statistical analysis was conducted in the field by measurement of 383 pebbles. Lithology of pebbles is diversified and composed of ophiolitic complex (diabases and green sandstones), red sandstones, grey limestone and black pelagic limestone. Diversity is explained by proximity of these rocks according to geological maps and complexity of surrounding terrain dueto intensive tectonic activity in the past. Micropaleontological analysis has proved previously assumed Middle Miocene (Badenian) age of samples and calcareous nannoplankton assemblage correspondence to NN5 Nanno Zone. Additionally, presence of planktic foraminifera Orbulina suturalis also corresponds to NN5 zone. It is concluded that researched deposits correspond to second (out of three) Badenian transgressive-regressive cycles, which correlates to global see level cycle TB 2.4.