Have you guys heard of the movie "Night of the zoopocalypse"? If you do, then i want you to think about dinosaurs and other prehistoric animals in the form of what they call the zombies in this movie "gum-beasts". Because i'm telling you, the concept and creativity of these zombies are pretty cool.
If you're not sure if you want to watch the movie, here's the context: the zombie's skin is blue, the eyes are green and glowy, herbivores gain sharp teeth, and their body are gummy, hence the name given in the movie. Body parts can detach themselves (and reattach) as well as moving on their own. The terrifying part is that the zombies can also merge into one being.