67" Museum Quality Fossil Fish Mortality Plate - Ready to Hang

Note: Because of its size and weight, this piece will ship via freight on a pallet or in a crate. Our website can’t automatically calculate freight charges, so shipping costs will be determined and billed after purchase. If you’d like a quote beforehand, please contact us prior to ordering.

This is an exceptional 67.5 × 32.4" fossil fish mortality plate from the Green River Formation of Wyoming, collected from the famed “Gastropod Layer” at the Clear Creek Quarry near Kemmerer. The slab features 30 beautifully preserved, jet-black Knightia eocaena, ranging from 3.7" to 5.8" in length. Importantly, this is a completely natural assemblage—none of the fish have been moved, inlaid, or added. Plates of this size with an untouched association are increasingly rare, offering a remarkable snapshot of life in Fossil Lake nearly 50 million years ago.

The mural has been professionally backed with wood and fitted with a wall hanger, making it ready for display right out of the crate. It can be prepared for vertical or horizontal mounting—just contact support@fossilera.com
or include your preferred orientation with your order.

About Fossil Lake

50 million years ago, in the Eocene epoch, these fish thrived in Fossil Lake, which was fed by the Uinta and Rocky Mountain 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: 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.

A view of one of the commercial quarries where fossils from the Green River Formation are collected.
A view of one of the commercial quarries where fossils from the Green River Formation are collected.
FOR SALE
$10,500
DETAILS
SPECIES
Knightia eocaena
LOCATION
Clear Creek Quarry, Kemmerer, Wyoming
FORMATION
Green River Formation, "Gastropod Layer"
SIZE
Rock: 67.5 x 32.4", Fish Size Range: 3.7" to 5.8" long, Weight: 150 lbs
CATEGORY
ITEM
#342453
GUARANTEE
We guarantee the authenticity of all of our specimens.