When did the jade carving on turtle's back originate?

Turtle jade can be traced back to Banpo site about 6000 years ago and the Neolithic age in Qufu, Shandong Province.

It has a long history and originated from the transition period from matriarchal society to paternal society. From Shang and Zhou Dynasties to Warring States Period, the material of turtle back was mostly jade. Whether it is sculpture or jade color, it is particularly rich.