Phareodus testis
Green River Formation
Middle Eocene
Lincoln County, Wyoming
Sold to Bryan Delph

This is an outstanding and nearly perfect example of the species from the Fossil Butte Member of the Green River Formation. This specimen has excellent preservation and detail for this locality. Teeth, fins and bones all have exquisite detail. The preparation on this specimen is premier. The fish body is 12.5 inches long. The slab is 18.5 inches by 14.5 inches There is no repair and only minor restoration of the terminal fin rays.
Phareodus testis is the smaller of the 2 valid species present in the Green River beds. It has a deeper belly and shorter body profile than the larger P. encaustus. They were thought to be solitary fish and are generally not found preserved with other Phareodus individuals. Phareodus is a member of the Osteoglossidae and is represented by 10 living species found exclusively in tropical freshwaters of South America. They are predatory and feed on insects and other fishes.