Ant Insect Fossil Diversity

from Green River Formation

Insect Order Hymenoptera, Family Formicidae

Geological Time: Eocene

Size (25.4 mm = 1 inch): Ant fossils are 20 mm and 7 mm; Matrix: 90 mm by 55 mm and 60 mm by 60 mm respectively

Fossil Site: Green River Shale, Uintah County, Utah

Fossil Code: GRF305

Price: $75.00


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 are two ants of widely-disparate size. The larger is the size of a modern-day Carpenter Ant while the smaller is about the size of the Field Ants that can ruin your picnic. This is the first time I have been able to offer the larger ant in 20 years. Ants are uncommonly found in the Green River Formation.

Insect Fossil Purchases

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