An idea for a new story

So a friend of mine was one of the first people to know that I will throw some originality into FimFiction, and ironically, in the most used genre of fanfiction of MLP. However, another idea for a story came to me when I re-read a favorite story of mine. I mean have you ever wondered how many fanfictions in the MLP Universe features this creature?

Or this one.

And this one.

Point being, very few fics are made in the MLP Universe near the idea of dinosaurs existing or transportated to their world so in this case I will give you a hint at which dinosaur I will choose.

If you think I should reconsider with a different dinosaur then please tell me in the comments