Yes, the wikipedia article makes an argumentation error. Even if the Pray Codex doesn't show the shroud, it contains a very unique depiction of a nude Jesus. So the painter of the codex with high probability have seen the exact same picture as what is on the Shroud now. This doesn't prove that the shroud is earlier than the Pray codex, but this is something an unbiased scientist have to try to answer. I find it very annoying that all these very scientific-looking articles never try to explain how the hell is it possible that the Pray codex contains a depiction of the dead Jesus in a way, of which the first known depiction is from a century later in a photonegative form. Not to mention the other ridiculous arguments, that the shroud is one from the enormous amount of medieval forgeries. Where are all the other photonegative shrouds and pictures. I personally don't think that a supernatural creator omniscient etc god would create a photo of his resurrecting son, but I am really annoyed by all that bad science around the shroud. Ok, the C14 is real, because they told so (yeah, science never tries to find contradicting evidence, never challenges previous knowledge or belief...) but then you could still use Occam's razor to find simple explanations for like the Pray Codex depiction. At least please try to explain, why the drawing there is so different to all other drawings of Jesus in that era.
Vecr|1 year ago