Fossil Ginkgo Leaf - 3.030" printful Sharks were some of the

Sharks were some of the first fish to evolve multiple rows of teeth

This specimen is a piece of magnetic tape from a cassette owned by astronaut Paul Weitz

320" sample of Red Planet Obsidian set into a sterling silver bezel

What would the earth be like today had the birds won

The Synapsids (mammal-like reptiles such as Dimetrodon) were replaced by Archosaurs

Fossil Ginkgo Leaf - 3.030" printful Sharks were some of theThe 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. 030" fossil Ginkgo cranei leaf from the Sentinel Butte Formation in North Dakota. This formation and the fossil are from the