Real Diplomystus Fossil Fish

Here is a very detailed, 3.5" long prehistoric Diplomystus fish fossil from a quarry near Kemmerer, Wyoming. It's from the Green River Formation and approximately 45-50 million years old. It displays well on the included acrylic display stand.

Diplomystus is an extinct genus of freshwater, ray-finned predators that are distantly related to modern herrings and sardines. Diplomystus has a distinctive jaw that protrudes aggressively outward from the mouth at an angle that allowed it to feed in surface waters and devour such prey as the smaller, schooling, Knightia.

SPECIES Diplomystus dentatus
AGE Eocene (45-50 MYA) View on Geological Time Scale
LOCATION Kemmerer, Wyoming
FORMATION Green River Formation
SIZE 3.5" on 5" x 3.5" lime rock
CATEGORY Fish Fossils
SUB CATEGORY Green River Fossil Fish