From The Green River Formation, Wyoming, USA Here is an amazing HUGE, museum quality Palm Frond specimen in the same matrix as a Priscara liops from the Eocene (circa 50 million years ago) from the Green River Formation of Wyoming. This is a very complete Sablites sp. leaf, one of the most sought-after and displayable fossils...

The fossilized shells of Ammonites are typically spiral-shaped, very much like that of the Nautilus. However, around 170 million years ago, these squid-like creatures began to build their shells in exotic, highly variable shapes. The species pictured here is Ancyloceras vandenheckii, which is typically found in Morocco. However, heteromorph ammonites are...