"The more you progress on the game, the higher chances to find harder subclasses (variations of a dinosaur or other species that shares it's niche but it's better than the original) of a certain dinosaur.

Example 1: Ceratosaurus, the more ceratos you kill, the higher chances to find allosaurus (+tankier, +dangerous), and viceversa, the more allosaurus you kill, the higher chances to appear torvosaurus.

This can be made other way: Make the subclasses to change depending of map, so on hills we can find cera, on the desert map torvo and on the jungle Allo.

They are meant to BE model VARIATIONS of an already INGAME animal, not a DLC (basically to give more FREE content to the game with 6 creatures)

Subclasses could have different skin with patterns and maybe different behaviour.

Also they could be compatible with mutation variants -longterm- (so a mutated cera would be harder than a torvosaurus BUT a mutated torvo would be harder than default rex).

ironically i'll be up to tweak the different dinosaur species to make different subclasses if the devs are interested, like the torvo and allo i just showed "