2.1" Fossil Ginkgo Leaf With Winged Walnut Fruit

This is a beautiful fossil Gingko leaf (Ginkgo adiantoides) associated with a winged walnut fruit (Cyclocarya brownii) from the Sentinel Butte Formation of South Dakota. It is finely detailed and the light preservation contrasts well against the dark orangish-brown rock.

During this time on the Paleocene epoch the Ginkgo genus was only represented by a single polymorphic species, Ginkgo adiantoides. This species was distributed in much of the Northern regions of North America which had a hot, humid climate. It's leaves were virtually indistinguishable from modern-day Ginkgo biloba. The species Ginkgo adiantoides went extinct approximately 7 million years ago.
DETAILS
SPECIES
Ginkgo adiantoides & Cyclocarya brownii
LOCATION
Morton County, North Dakota
FORMATION
Sentinel Butte Formation
SIZE
2.1" wide leaf on 4.3x4.2" rock
CATEGORY
ITEM
#58993
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