Asphendou Cave petroglyphs
The small Asphendou Cave in western Crete preserves a number of overlapping petroglyphs on a limestone speleothem that may have been made between the Upper Palaeolithic and the early Bronze Age. The oldest of these, that possibly dates from the Upper Palaeolithic, depicts a number of quadrupeds which may represent extinct Candiacervus deer.
Source: Wikipedia — Asphendou Cave petroglyphs (CC BY-SA 4.0)