After dying following a car accident, Fen Chiang finds himself in a limbo between the afterlife and the mortal world where he meets God, who makes him a strange request: to immediately reincarnate in a world called Eden, where all species that existed on Earth (dinosaurs, prehistoric mammals, synapsids, pterosaurs, etc.) coexist together, to save it from the human beings who are destroying it due to excessive pollution. Armed with his knowledge and a System, our hero, now reincarnated as a spinosaurus named Sobek, must embark on a difficult journey to reunite the dinosaurs and curb humanity's greed. However, defeating the most powerful species that ever existed will not be an easy task even for a dinosaur army, and surely humanity will not abandon the title of dominant species very easily...

I'm a spinosaurus with a System to raise a dinosaur army

A group of alamosaurs were grazing quietly in the middle of the forest. The herd was quite large: making an approximate hypothesis, one could safely admit that there were at least a hundred of them. 


Such a pack ate disproportionate amounts of food, clearing large acres of forest at very high speed. Wherever they went, the green foliage of the trees gave way to bare branches. The alamosaurs had to eat around one ton of food each day to support their mass of over seventy tons of weight. 


While a hundred alamosaurs might seem like a lot, they weren't even remotely close to a real herd. Some groups of sauropods could have numbered thousands of individuals. Such herds of giant herbivores could clear entire acres of forest in a matter of hours. 


Alan Grant