Fossil Ginkgo Leaf - 3.862" morecoolthings 335" tektite is set into

335" tektite is set into a sterling silver bezel and contains a chain of the same material

This specimen is a piece of Darwin glass

Glyptodons were heavily armored mammals originating in the Pliocene Epoch three million years ago

"The observed instances of periosteal reactive bone and healing fractures are consistent with such non-random trauma

50" nodule of Fairburn Agate from the Minnelusa Formation in South Dakota

Fossil Ginkgo Leaf - 3.862" morecoolthings 335" tektite is set intoThe Ginkgo tree is a beautiful plant with fascinating fan like leaves that turn a rich gold in autumn. First appearing in the Jurassic Period, this magnificent gymnosperm has changed very little over the past several million years, making the modern tree a living fossil of its prehistoric ancestors. This specimen is a 3. 862" fossil Ginkgo cranei leaf from the Sentinel Butte Formation in North Dakota. This formation and the fossil are from the