Back to the main Green River Fossils Page
This species is found most often in the split-fish quarries. It is easily distinguishable by itís sharp, thick dorsal and anal spines and deep body. This spines were most likely a defense mechanism.
Click on an image to see a more detailed view.
[Home] [About Us] [Green River Fossils] [Fossils] [Ammonites] [Whole Ammonites] [Cut Ammonites] [Minerals] [Spheres]