This is less impacting than the recent spat of Paleolithic rock art datings but it is still interesting. Rock art from Cuenca province (Spain) of schematic style has been dated to the Chalcolithic period... as expected.
Why "as expected", because the motifs are very similar to others known from mobile art such as bone idols or pottery found in stratigraphic contexts in Southern Iberia in that same period. The so-called "oculados" (eyed) motifs are widespread.
However the range of possible dates obtained is wide: between the middle of the 4th millenium and the early 1st millennium BCE. It includes all the Chalcolithic but also the Bronze Age and even the beginnings of the Iron Age.
|One of the dated sites|
|Orange: areas of "oculado" idols in SW Iberia|
|An "oculado" pot from Los Millares.|
It is often thought that the "oculados" represent some sort of deity of the age.
Sources[es]: Pileta, La Cerca.
Ref. Juan F. Ruiz et al. Calcium oxalate AMS 14C dating and chronology of post-Palaeolithic rock paintings in the Iberian Peninsula. Two dates from Abrigo de los Oculados (Henarejos, Cuenca, Spain). Journal of Archaeological Science 2012. Pay per view.