010031 - Nicely Preserved Knightia Fossil Fish Eocene Green River Fm, Wyoming (USA) Crinoids We have uploaded a picture

We have uploaded a picture with an anatomical reconstruction

Impressive piece worthy of exposure

Nice specimen of this close relative of Tyrannosaurus rex

All the crocodylomorpha lived in this delta next to fish

Awesome natural association with 3 pyritized specimens

010031 - Nicely Preserved Knightia Fossil Fish Eocene Green River Fm, Wyoming (USA) Crinoids We have uploaded a pictureMagnificent specimen with detailed preservation. You can see the whole bone structure as well as details of the jaw and its small teeth. From this type of fossilization, through taphonomy, many aspects of the original paleoenvironment can be learned. This type of preservation only occurs under certain very special circumstances, in the bottoms of lakes, with anoxic conditions, for example.