Rare Amia Green River Fossil Fish

Amia fragosa

Order Amiiiformes, Family Amiidae

Geological Time: Eocene

Size: Fish fossil is 350 mm in length

Fossil Site: Green River Formation, Fossil Lake F-2 Layer, Kemmerer, Wyoming


Description: This 50 million year old, Eocene-Era fossil fish comes from one of the world's famous Laggerstatten, the Green River Formation in Wyoming. A small portion of the fish fossils from Green River exhibits such fine preservation. The significant extent of soft-tissue preservation that makes the site famous is evident in this specimen.

This one is Amia fragosa, a fossil relative of the modern bowfin Amia calva. It is extremely rare, with only a few complete examples known. It is even more rare than the gar, and highly prized by collectors. Note the exceptional detail in the fins, teeth and scales preserved in this almost 50 million year old example.

click to enlarge

 
 

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