Ginkgo laramiensis WardLate
Cretaceous
Colgate Member – Fox Hills Formation
Glendive, Montana, USA

42mm leaf on 103mm matrix. This site was first discovered over a century ago by early geologists exploring the west.

The fossil ginkgo leaves on the market today are mostly the Paleocene ones from North Dakota, but sometimes, ginkgos are found at Cretaceous sites as is the case with this specimen.

The earliest known trees of the Order Ginkgoales appear in the fossil record in the Early Jurassic.