For that I blame the curators themselves. Whenever you go to a museum, the exhibits extrapolate far more than is reasonable from the thing they're actually displaying. And then they blend it in! Entire skeletons to glue together a few bones, leaving you unable to tell what's real - something pulled out of the ground where it's been resting for millions of years - and what's a historian's best guess. Thanks to that we still have exhibits of dinosaurs with bare skin.
Show me the real fossil, it's far more interesting.