I rather love the concept here. I've never played "Fossil Fighters", but if it's anything like this game then I'm sure I would have loved it, too.
Sadly, I think I did something wrong or there's a mechanic that I fail to grasp, because I keep getting stuck in an endless loop trying to defeat enemy Dinos placed on Blue tiles during battle: neither I nor them can properly hurt each other (the attackes keeps staying at Zero).
A pity, since I quite like the general game loop here.