XL 4.5" Knightia Eocaena Fossil Fish Green River FM WY Eocene Age COA & Stand Plesiosaurus Tooth before their ultimate demise during

before their ultimate demise during the Cretaceous-Paleogene extinction 66 million years ago

and sensory antennae for navigation and detecting predators

Their origin was the subject of debate for centuries

A notable example is a large bite wound on an Edmontosaurus matching a Tyrannosaurus jaw

XL 4.5" Knightia Eocaena Fossil Fish Green River FM WY Eocene Age COA & Stand Plesiosaurus Tooth before their ultimate demise duringLocation: Kemmerer, Wyoming Weight: 2 Pounds 2. 3 Ounces Dimensions: 8. 2 Inches Long, 7. 2 Inches Wide, 0. 4 Inches Thick (Plate) The Fish is: 4. 5 Inches Long, 1. 7 Inches Wide Comes with a Certificate of Authenticity. Comes with a Free Stand. The item pictured is the one you will receive. 50 million years old, Eocene age Knightia Eocaena is the most common fish in Fossil Lake and possibly the most frequently articulated vertebrate fossil worldwide.