Given the slow pace of evolution and morphological similarity between members of the genus, there may have been only one or two species existing in the Northern Hemisphere through the entirety of the Cenozoic: present-day G. biloba (including G. adiantoides) and G. gardneri from the Palaeocene of Scotland.
Ginkgo biloba | Ginkgo | ginkgo | Rhizanthella gardneri | Ginkgo gardneri | Tillandsia gardneri | Ginkgo cranei | ginkgo biloba | ''Fundulopanchax gardneri nigerianus'' "Makurdi" – adult male from a locality near Makurdi | Fucus gardneri | Banksia gardneri | Atriplex gardneri |