I'm a System in the Cretaceous

Everyone knows about the Jurassic Period, but who knows that the Cretaceous was the age of the dinosaurs at their peak? In this era, flowering plants had only just claimed dominance; And after nearly 200 million years, the dinosaurs’ rule, which began in the Triassic, was underway: Quetzalcoatlus spread its wings above the clouds, Tyrannosaurus ruled the plains of North America and Asia, Ankylosaurus rose to become a top-tier star among herbivorous dinosaurs, and giant sauropods roamed the continents, standing more than thirty meters tall. Liu Wan, who transmigrated into a System, will use stat points to give the dinosaurs an extraordinary makeover.