Even before the publication, the Chinese scientists Deng Tao and Qiu Zhanxiang had revealed the skull to be a crude forgery.
The greatest scientific fraud of the 20th century is not so well known outside of professional paleontologist circles.
Is there any other evidence that this sensational discovery was nothing but hype? Sure there is.
Feathers, which are the most complex integumental structures known in the animal kingdom, without doubt required coordinated changes in numerous genes.
Personally, I am quite sympathetic to the dissenting view of my paleontologist colleague Simon Conway Morris.