Wonderfully-Preserved Eocene Fossil Ant Assemblage

Name: Fossil Insect Order: Hymenoptera Family: Formicidae

Age: Eocene

Size: mm (25.4mm=1 inch): Ants: 6 - 8 mm long body. Matrix: 70 mm by 83 mm.

Location: Green River Shale, Uintah County, Utah

Code: I011

Price: Sold

Description: The Green River Formation deposits of Wyoming, Colorado, and Utah are best known for their immaculately-preserved fish, but other examples are known as well, as this specimen attests. These ten ants looks most like the Carpenter Ants of today, and this plate is a fine example of the type of preservation seen in these 50 million year old insects. Notice also the many plant impressions found as well.

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