Piltdown is considered a fake because it is incompatible with evolution. My question was, on what basis would a creationist argue it is a fake?
Piltdown is considered a fake because by studying it, it was deduced to have been a fabrication. It has nothing to do with it being inconsistent with any theories.
Prior to the discovery that it was a hoax, why was it trumpeted by Charles Dawson, champion of evolution who discovered it, if it was incompatible with evolution?