This looks kind of like a dinosaur! Checkmate, evolutionists!

I think the spines are part of the background, a bush or a tree or something. Also saw an elephant. Elephant standing in front of a bush.

I was thinking pig

Who knows? Maybe just an imaginary creature with some fins on its back that happens to look like a dinosaur. The problem is that armchair archaeologists think "this looks like that" has significance when it usually doesn't.