Two Eocene Fossil Insects (Dragonfly and Nymph?) - Colorado

This is a nice association of two fossil insects from the Eocene, Green River Formation of Colorado. While this formation is best known for well preserved fossil fish found in Wyoming, other sections of the formation contain a very diverse insect fauna. On this rock is the preserved remnants of a .5" long dragonfly and what appears to be a .5" long larva or nymph of another insect, potentially a dragonfly, though this is speculation.
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DETAILS
SPECIES
Unidentified Dragonfly (Odonata) & Unidentified Larva/ Nymph
LOCATION
Colorado
FORMATION
Green River Formation
SIZE
Dragonfly: .5" long, Larva: .5" long, Rock: 2.3 x 1.5"
CATEGORY
ITEM
#189478
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