Three Knightia Fish Fossil From The Green River Formation
Eocene Period- C. 50 Million Years Ago
Order to which the fossil belongs: Clupeifomes
Name of which the family belongs: Clupeidae
The Knightia fish comes from one of the world’s famous Laggerstatten, the Green River Formation in Wyoming, USA. It is the unusual chemistry of fossil lake that prevented decay and scavenging of dead organisms while layers of limestone matter slowly accumulated.
Good definition of three Knightia fish on a matrix of sub-oolitic limestone.
Matrix: 94mm x 111mm length
Knightia: 45mm to 50mm length