9.3" Fossil Fish (Phareodus) - Green River Formation, Wyoming

This is a elegant, 9.3" long example of one of the more uncommon fossil fish found in the Green River Formation. It is a Phareodus from the Lindgren Quarry near Kemmerer Wyoming. You can even see a row of tiny teeth in its mouth. It's nicely centered on a rectangularly cut slab of shale.

This specimen includes an acrylic display stand.

Phareodus had a mouthful of sharp pointy teeth making it a voracious lake predator. In fact the name Phareodus actually means "to have tooth". Spines from other fish such as Mioplosus and Priscacara have frequently been found preserved in their stomachs.

50 million years ago, in the Eocene these fish thrived in Fossil Lake fed by Uinta and Rocky Mtn. 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 in 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.
DETAILS
SPECIES
Phareodus
LOCATION
Lindgren Quarry, Kemmerer, Wyoming
FORMATION
Green River Formation
SIZE
9.3" long on 11.4 x 7.5" rock
CATEGORY
ITEM
#163416
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