Gingko biloba trees are survivors. They survived the Permian–Triassic extinction event 250 million years ago, during which 90% of marine species and 70% of land species died, then flourished during the early Jurassic period, spreading worldwide.
The division of Ginkgophyta began declining during the Cretaceous geologic time period and by two million years ago, all that remained of native forests was limited to a small area of central China. Gingko biloba is now the only living species of Gingkophyta, all others being extinct.
Gingkos (also called Maidenhair) are a living fossil that provides beauty in landscaping and use in cooking and as a health supplement. Xingshen Qian enjoyed their beauty on a morning walk through Mountain View.