1.55" Fossil Ginkgo Leaf & Coproplite - North Dakota

Fossil Ginkgo Leaf & Coproplite - North Dakota #217931

This rock contains a fossil Ginkgo leaf (Ginkgo cranei) and, on the reverse side, what appears to be a coprolite, from the Sentinel Butte Formation of North Dakota. The coprolite is from an unidentified source and the leaf is in decent relief against the orange-brown rock.

It comes with an acrylic display stand.

During this time in the Paleocene epoch, the Ginkgo genus was only represented by a single polymorphic species, formerly described as Ginkgo adiantoides. In 2012, the taxon Ginkgo cranei was assigned in place of Ginkgo adiantoides. This species was distributed in much of the northern regions of North America, which had a hot, humid climate at the time. Its leaves were virtually indistinguishable from modern-day Ginkgo biloba. These species of Ginkgo went extinct approximately 7 million years ago.