Description

Green River- Knightia fish plate (260223w)

Species: Knightia sp.

Age: Eocene Epoch, 53 million years

Formation: Green River Formation

Location: Kemmerer, Wyoming

The Green River Formation is composed of the remains of an ancient lake bed that crossed multiple states and dried up millions of years ago. The lake contained hundreds of species, ranging from the most common Knightia to gars, freshwater rays, and even crocodiles and bats flying overhead.

Knightia are the “feeder fish” of this formation and are the most abundant species found here. Resembling a sardine or minnow, these were likely what most other fish predominantly ate. On the other hand knightia were likely opportunistic omnivores eating small insects, crustaceans, and plant matter.

•  Fish has been sealed and stabilized in the original matrix and has NOT been inlaid or artificially colored.
• Offer includes a stand and a Certificate of Authenticity