Ginkgo Leaf Fossils
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Ginkgo Leaf Fossils for sale.These are Ginkgo cranel leaves from the Paleocene Epoch of the Paleogene Period. They are about 60 million years old and were found in the Sentinel Butte Formation, Morton County, North Dakota.
Ginkgos are a very old order of gymnosperms, with a history dating back as far as 290 million years ago. There is only 1 species living today from this group, Ginkgo biloba. It is native to China but it is cultivated in many places around the world.
Ginkgo forests were at one time very common, especially in the northern hemisphere. They are large trees growing to a height of about 20-35 Meters or 65 to 165 feet. They were most common during the Jurassic and early Cretaceous Periods. They declined in numbers and diversity as flowering plants rose in prominence. By the Pliocene their numbers had dwindled everywhere except an area in China where they survived to this day.
Fossil leaves very similar to modern day Ginkgos have been found from the middle Jurassic Period.
Ginkgos are very unusual trees. Their leaves are fan shaped with veins that radiate out onto the blade never forming networks. As gymnosperms they are related to the cycads.
Ginkgo forests were at one time very common, especially in the northern hemisphere. They are large trees growing to a height of about 20-35 Meters or 65 to 165 feet. They were most common during the Jurassic and early Cretaceous Periods. They declined in numbers and diversity as flowering plants rose in prominence. By the Pliocene their numbers had dwindled everywhere except an area in China where they survived to this day.
Fossil leaves very similar to modern day Ginkgos have been found from the middle Jurassic Period.
Ginkgos are very unusual trees. Their leaves are fan shaped with veins that radiate out onto the blade never forming networks. As gymnosperms they are related to the cycads.
