Fossil Leaf (Cardiospermum coloradensis) - Green River Formation it was not until 1783

it was not until 1783 that spinel was any different from the ever so sought after ruby

This genus was low on the food chain

The crystal structure is often thin enough you can see right through gemmy sections

Mammoths migrated up through modern-day Asia

likely to cover up missing material

Fossil Leaf (Cardiospermum coloradensis) - Green River Formation it was not until 1783This fossil comes from the famous Green River Formation, living around 50 million years ago, during the Eocene. Also referenced as the balloon vine plant, it is related to the soapberry family. These plants are recognized by their production of bright red fruit. Length: 3. 0 x 2. 6 in. Weight: 6. 3 ozFossil Type & Species: Compression & Cardiospermum coloradensisLocation: Green River Formation, United StatesYou will receive the fossil pictured. Colors