Ginkgo biloba first appeared in the Carboniferous period 345 million years ago. Ginkgo biloba was widely distributed in Europe, Asia and America in the northern hemisphere, widely distributed in the northern hemisphere in Mesozoic and Jurassic, and began to decline in the late Cretaceous.
Until 500,000 years ago, the Quaternary glacial movement occurred and the earth suddenly became cold. Most ginkgo plants are on the verge of extinction. They are extinct in most parts of Europe, North America and Asia. Only China has superior natural conditions, which have been miraculously preserved. Therefore, scientists call them "living fossils" and "pandas in the plant kingdom".