0.5 Detailed Fossil March Fly Insect Green River FM Uintah County UT Eocene Age Metacanthina forming through the alteration of

forming through the alteration of primary manganese-bearing minerals such as lithiophilite and triphylite

most notably the Frasch process

With a Mohs hardness of 5

It was likely an apex predator

0.5 Detailed Fossil March Fly Insect Green River FM Uintah County UT Eocene Age Metacanthina forming through the alteration ofLocation: Uintah County, Utah Weight: 0. 5 Ounces Dimensions: 1. 8 Inches Long, 1. 7 Inches Wide, 0. 2 Inches Thick (Plate) Insect Dimensions: 0. 5 Inches Long, 0. 5 Inches Wide The item pictured is the one you will receive. 50 million years old, Eocene age March Fly Insect About 50 million years ago, during the Eocene Epoch, Fossil Lake occupied what is now southwestern Wyoming. At its greatest extent, the lake covered approximately 930 square miles;