4 miles west of Rio Blanco (Eocene of the United States)

Where: Colorado (39.8° N, 108.1° W: paleocoordinates 42.5° N, 97.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Parachute Creek Member (Green River Formation), Uintan (46.2 - 40.4 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; lithified mudstone

Size class: macrofossils

Preservation: adpression

Collected by Bob Hammon; reposited in the USNM

Primary reference: S. J. Fitzgerald. 1999. A new species of Plecia from the Green River Formation and new combinations of fossil Bibionidae (Diptera). Great Basin Naturalist 59:182-187 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 138790: authorized by Matthew Clapham, entered by Matthew Clapham on 27.01.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Diptera - Bibionidae
Plecia akerionana Fitzgerald 1999 love bug
USNM 498201