Where: Rio Blanco County, Colorado (39.7° N, 108.0° W: paleocoordinates 44.3° N, 92.5° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Parachute Creek Member (Green River Formation), Ypresian (56.0 - 47.8 Ma)

• Approximately 45 m below the Mahogany Bed. The Parachute Creek Member was deposited during approximately 2.5 million years of the Ypresian, from about 51.3 to about 48.5 Ma, and localities in the "B-Groove" layer are estimated to be approximately 49 million years old, that is, late Ypresian.

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; lithified mudstone

Size class: macrofossils

Preservation: adpression

Collected by J. Barkley; reposited in the YPM

Primary reference: G. S. Antell and J. Kathirithamby. 2016. The first twisted-wing parasitoids (Insecta: Strepsiptera) from the early Eocene Green River Formation of Colorado. Bulletin of the Peabody Museum of Natural History 57:165-174 [M. Clapham/M. Clapham/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 182249: authorized by Matthew Clapham, entered by Matthew Clapham on 17.10.2016

Creative Commons license: CC BY (attribution)