Fossil Ginkgo Leaf - 2.825" silurian (Source: Mini Museum)

(Source: Mini Museum)

This specimen is a 124-gram fragment of a leaded glass shield window installed in the T Plant (221-T) Plutonium Recovery Building

green and blue

and a growing professionalization of warfare all combined to keep the European knight reliant on the tools of their trade: horse

5" in diameter and 1

Fossil Ginkgo Leaf - 2.825" silurian (Source: Mini Museum)The 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 2. 825" fossil Ginkgo cranei leaf from the Sentinel Butte Formation in North Dakota. This formation and the fossil are from the