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Unidentified Fly Age: Eocene Formation: Green River Formation Location: Bonanza, Utah Size: Fly is 0.4 inches long. This specimen is not for sale Click here for similar specimens that are for sale
This is a nice fossil fly. It is from the Eocene Green River Formation of Utah. This specimen has great detail - under magnification you can easily make out all the parts. The segmented body is well preserved and some of the wings are even intact. This is a good example of a fossil fly preserved on shale.