4 March flies • Plecia pealei. • Eocene Age Insect from Wyoming for Sale

4 March flies • Plecia pealei. • Eocene Age Insect from Wyoming For Sale

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4 March flies • Plecia pealei. • Eocene Age Insect from Wyoming:
$65.00

March Fly • Fossil Insect

Plecia pealei • Green River Formation • Eocene Period

Collecting Location & Age

This fossil specimens comes from the 18 inch layer on the Dempsey Ranch Quarry in southwestern Wyoming about 12 miles from Fossil Butte National Monument. The Green River formation consists of a series of three ancient Eocene age lakes now located in Wyoming, Utah and Colorado. The formation ranges in age from 53.5 to 48.5 million years old, these flies were found in layers dated 52 million.

Taxonomy

Plecia is a genus of fly in the order Diptera, which are also known as the True Flies. March flies have been found in deposits dating back to the Jurassic Period and are of the more common fossil insect species in collections. Here is their lineage.

Kingdom: Animalia

Phylum: Arthropoda

Class: Insecta

Order: Diptera

Family: Bibionidae

Genus: Plecia

Species pealei

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