Is this a skull of a armoured ankylasauridae

[WiseGuy]

Found in wise county in the puluxy formation..i believe this would classify as a replacement fossil ..maybe trace but its pretty apparent the skull structure is identical. 

[WiseGuy]

I will post with a scale asap

[Opabinia Blues]

No bone texture, no symmetry, no specific identifiable anatomy. This is a piece of sedimentary rock eroded into a suggestive shape. It's no more a fossil Ankylosaur than a cloud that looks like an Ankylosaur is a fossil Ankylosaur. Great job posting with a locality (and scale, eventually). though. 

[Opabinia Blues]

For future reference, fossils (even cast/mold replacements, though bones typically three-dimensionally as permineralizations, not as cast/mold replacements) will be distinct in lithology from the surrounding rock. The part of the rock that looks like an Ankylosaur head is identical in lithology to the matrix. 

Edited September 21, 2022 by Opabinia Blues

[JohnJ]

It is not what you think it is any more than the other rocks you posted using your first membership.

[Tidgy's Dad]

I would keep it as an excellent example of pareidolia.