Nice limestone piece with indigenous art!

[EDavis]

My backyard has an area of chunks of limestone which I can see art on them but so worn. This piece had a thick coated spot that stood the test of time. I can’t find this kinda art online yet, Most of what I see under certain light, the art looks almost cartoony. What do you think?

 

[Emil W]

Looks natural...perfect example of pareidolia

 

[smokeythecat]

Fossil? Cool rock though.