Spiritual Skeleton Dragon Chronicle

From 25.5 Billion years ago to 5.5 Billion years ago, when many fairies were not born to humans, dinosaurs already existed. However, the world of immortals at that time did not have aura and was just an ordinary planet. However, during this era, the ecological environment was extremely harsh. Ultra-low and ultra-high temperatures occurred every day. During the day, the maximum temperature could soar to within 70 degrees Celsius to 80 degrees Celsius. At night The lowest temperature can reach below zero, 90 to 100 degrees Celsius, and the environment is extremely harsh. However, with the birth of aura, the planet gradually took on a life of its own, and the dinosaurs were born at this time. In this era, there were no human monsters at all. Other races of dinosaurs were the masters of the planet. However, this era was also an era of dinosaur hegemony. The major dinosaur races competed for hegemony. The same group of dinosaurs are all thinking about how to devour each other to make themselves more powerful. However, a mass extinction caused the vast majority of dinosaurs to die. However, a very small number of dinosaurs survived the mass extinction and gradually evolved the ability to be cultivated. However, the cultivation ability at that time was extremely limited and could not effectively improve their realm. This led to their evolution gradually ascending from cultivation to physical evolution. After long-term training, the surviving dinosaurs gradually evolved metal-like bones and super-tough muscles. However, hundreds of millions of years later, these remaining dinosaurs were completely extinct during the second mass extinction. However, although the mass extinction completely destroyed their physical bodies, the spiritual roots and Dantian in their bodies still exist. As long as these things still exist, there is the possibility of resurrection.