Again, you are assuming the fossil record is chronological. This evidence is against it.
Second of all, you are ignoring all of those but one. What's up with that?
Third of all,
I understand the initial reaction that it looks like a 'stegosaur'...but if you really try and compare...
The head is too big
No spikes on the tail
The plates are not the same shape
The large ears are a giveaway
Notice that the serpent which acts as a frame has the same 'plates'.
The platelike flame/petal images are representative of holiness
This is clearly a pig....maybe a 'holy' pig.