 A 2013 study found that older paleoart was still influential in popular culture long after new discoveries made them obsolete.This was explained as cultural inertia.In a 2014 paper, Mark Witton, Darren Naish, and John Conway outlined the historical significance of paleoart, and criticized the over-reliance on clichés and the "culture of copying" they saw to be problematic in the field at the time.