In this RPG, the Dinosaurs do not have to be from one period in particular. In this, the Dinosaurs should act like they do in Walking with Dinosaurs, or Jurassic Park. Dinosaurs can warn eachother, but they can't have converstions.
-----------------------------------------------------------------------------------------------
The herd moves slowly and gracefully across the plain as the sun sets. A little dome-headed dinosaur, a young Stygoceras, scampers in-between the legs of the larger herbivores. Suddenly, the Stygoceras, Sveed, hears some comotion on the outskirts of the herd. I, a huge Tyrannosaurus rex, am attacking. I snap down on the neck of a Camerasaurus, crushing it. I drop the large herbivore to the ground and feast. Sveed squeaks in fear and hops away.