Fake Cave Painting

This cave painting was recently found by an archaeological team in Central America. The team is still digging, but have yet to disclose their location while they await independent verification of their carbon dating analyses. They say their first set of results dates the painting and other undisclosed artifacts to approximately 28,000 years ago.
The series of lines on the left-hand side, resembling a bar code, appears to the team to have been inscribed in the rock with a laser, and represents a heretofore unknown written language system.