TWO Species! a Rare Mioplosus and a Big Knightia FISH Fossil From Wyoming 1941gr

Hello, here is a very RARE fossil plate with a Mioplosus and Knightia fish fossil TWO Different SPECIES! All in their BIG HEAVY 50 Million Year Old Green River Formation Matrix! This fossil plate was quarried in an extinct lake that is known as Fossil Lake in Lincoln County, Wyoming. These fish date from the Eocene epoch a CRAZY 53.5 to 48.5 Million YEARS ago!
Here's More Info Long but interesting....Fifty-million years ago an ancient Lake existed in what is now Southwest Wyoming, US. The unusual chemistry of the lake created conditions that prevented decay while alternating layers of limestone and organic matter accumulated. The resulting laminated limestone LAYERS contain the highest concentration of articulated fish fossils in the world....neat! 
The largest fish fossil measures a nice! 5 3/8" or 13.6cm and the overall piece or matrix is a Big! 9 1/2" or 24.1cm at their biggest or from opposing side to side and a Display STAND is included!