Two Large Knightia Fossil Fish - Wyoming

This is a pair of large (5+ inch) Knightia alta from the Green River Formation of Wyoming. Both are very large for the species, and have exceptionally nice preservation. They are layed out tail to head on a 11.8" wide slab of shale. It comes with an acrylic display stand.

50 million years ago, in the Eocene these fish thrived in Fossil Lake fed by Uinta and Rocky Mtn. highlands. The anoxic conditions at the bottom of Fossil Lake slowed bacterial decomposition, prevented scavengers from disturbing corpses, and most interestingly, suffocated creatures that ventured into the oxygen-starved aquatic layer. The result is a miraculous exhibition of Eocene biota in a subtropical, aquatic community within sycamore forests teeming with creatures such as freshwater stingrays, dog-sized horses, menacing alligators, early flying bats, and one of the first primates.