This is an incredible, large fossil fish. A spectacular, well preserved
with a wooden backing for wall-mounting. Diplomystus is an extinct relative of modern day herrings. Its upturned mouth was used to feed on surface fish, like the small Knightia preserved beneath the large fish. These prehistoric fish swam in ancient Eocene lakes in Wyoming, USA - 50 million years ago, and are now preserved in the world famous Green River Formation.
Dimensions: Slab measures 29.5 x 24 x 1.25 inches. Fish measures 19.5 inches. Weighs 23.6 lbs. / 10.7 kg