Knightia Alta Fish Plaque

Plaque
11"/28cm wide
8"/20.3cm height

Fish
5"/12.6cm long

Weight
1.5Kg

Description

Good Knightia Fish plaque of the Green River Formation, showing good detail to the fully exposed anatomy of this [herring family member] fish. This quality of fish is readily described as in a good state of preservation, we wont argue with that! The dark fossilized skeletal bone and scales, attractively displayed on the lighter limestone plate.

.

Genus

Knightia Alta Fossil Fish sp.

Other Names

Herring

Geological Age

Tertiary Period [Paleogene], Eocene Epoch [50 mya]

Location

Green River Formation-Fossil Lake; Kemmerer, Wyoming

History of the Green River Formation

The Green River Formation represents one of the largest documented accumulations of sedimentary rock in the world and dates back 50 million years. It covers an area of more than 25,000 square miles and averages about 2000 feet in thickness. These lakes were formed by geologic events that uplifted the Rocky Mountains in early times. The climate was much different than the desert like climate of today. It was similar (subtropical) to the present climate of the southern Mediterranean. The first record of a fossil fish discovered in the Green River Formation was in 1850s when construction of the railroads commenced in that area of the U.S. the Fossil Lake area near Kemmerer, Wyoming USA. Also known as; Fossil Butte, Fossil lake. Fossil basin.