Fossil Ginkgo Leaves From North Dakota - Paleocene

This is a plate of three beautiful fossil Gingko leaves (Ginkgo adiantoides) from the Sentinel Butte Formation of North Dakota. They are finely detailed and the light preservation contrasts well against the dark orangish-brown rock. There is also an association of a small seed pod along one edge of the 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.
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DETAILS
SPECIES
Ginkgo adiantoides
LOCATION
Morton County, North Dakota
FORMATION
Sentinel Butte Formation
SIZE
Rock 6.7x6.2", Largest leaf 2.8" long
CATEGORY
ITEM
#102861
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