Two words: Nebraska Man.
Please tell me you aren't that silly.
Piltdown was a hoax. Nebraska Man was a mistake on the part of one scientist which temporarily fooled a couple of others and an illustrator. The mistake was quickly corrected. Here is a good article.
Is "Nebraska Man" truly the best you can come up with to try and discredit the theory of evolution?
No. You just asked for another hoax. I provided it. If I were trying to discredit the theory of evolution, I might talk about irreducible complexity or something more substantial.