It was, as a matter of simple fact, drawn by an artist based on the artist's own knowledge of Pithecanthropus.
All that hot air, and you still couldn't talk your way out of it. Look at your sentence above, and tell me WHERE in FLAMES did the artist get his "knowledge of Pithecanthropus"? Did he wake up one morning and just have this irresistable urge to draw a picture of a hairy creature with a scientific name? No scientific influence to go along with it? Dude, it ain't rainin'; that's recycled beer you're dumping against my leg. For a minute there, I thought that this was just the way you argue. Now I'm starting to think that you just can't help it; you probably wouldn't recognize the truth if it ran you over.
The good scientist Osborn had a MOTIVE. It was to discredit W. J. Bryan, and no other reason. Nebraska wasn't as fraudulent as Piltdown (filing teeth, etc.), but that doesn't make it less fraudulent. There's no such thing as being a "little bit" pregnant.
Even the devils believe; and they tremble....