Dino Fight Ideas?

Since I reached my third fight, and also because I'm not very creative, I was wondering if anyone had any ideas for a fight I could do. I have 2 or 3 ideas for a fight, and one of which is one that NO ONE, and I mean NO ONE wants to see, including me. If you're a Dino lover, you know what I'm referencing. If not...... you should know it anyways....... If you go through almost any topic on the Jurassic Park or Dinosaur forums....you'll find out..... 

Anyways I am kind of running out of ideas, and my second fight wasn't the most original idea either. They don't necessarily have to be 2 Dinosaurs either, it could be 2 other kinds of prehistoric creatures, or a prehistoric and modern creature, heck maybe even 2 modern creatures (which I don't feel like is the best route to go, but I'm not opposed to the idea). Heck, why not more than 2 creatures? Why not 3 or 4? Actually, now that I'm writing this I might be inching towards new ideas..... Anyways, I want to hear some ideas for other fights I could write. I would prefer an idea with some more obscure creatures in it, but I'm happy with whatever ideas you give me. 

Note: If you state a winner in your idea, I won't automatically make it so that creature wins, I will base it off my own opinion and factors that affect the fight, like the river in Ichthy V Allo.